2023-01-09 | A gas expands from 1.5 to 6.5 L against a constant pressure of 0.5 atm and during this process the | 0:59 | 11 | |
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2023-01-09 | 10 g of argon gas is compressed isothermally and reversible at a temp of 27 degree c from 10 l to 5l | 0:54 | 9 | |
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2023-01-09 | A liquid is stirred in thermally insulated container,for about 2 hours.which of the following is | 0:31 | 7 | |
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2023-01-09 | A system absorb 20 k j of heat and also does 10 k j of work.the net internal energy of the system | 0:30 | 5 | |
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2023-01-09 | In an insulated container 1 mole of a liquid molar volume 100 ml and 1 bar .liquid is steply taken | 0:35 | 13 | |
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2023-01-09 | Which of the following is an endothermic reaction | 0:28 | 6 | |
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2023-01-09 | When 10 g of methane is completely burnt in oxygen .the heat evolved is 560 K J .what is the heat of | 0:35 | 7 | |
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2023-01-09 | temperature of 1 mole of a gas is increased by heat constant pressure .work done is | 0:41 | 6 | |
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2023-01-09 | A certain electric motor produced 15 k j of energy each second as numerical work and lost 2 k j as | 0:37 | 6 | |
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2023-01-09 | 2023 01 09 15 07 28 | 0:50 | 4 | |
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2023-01-09 | Two liters of N 2 at 0 degree and 5 atm are expanded exothermally against a constant external press | 0:34 | 4 | |
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2023-01-09 | Human body requires 2370 K cal of energy daily.if the heat of combination of glucose is | 0:39 | 6 | |
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2023-01-09 | The difference between delta H and Delta E for the combustion of methane at 27degree Celsius would | 0:20 | 5 | |
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2023-01-09 | For the reaction C 2 H 4 plus 3 D 2 giving you 2 C O 2 plus 2 H 2 O delta E is -1415 k j the delta H | 0:29 | 5 | |
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2023-01-09 | 1 mole ideal gas expands freely at 310 K from 5 L vol to 10 L vol.then delta E and delta H of the | 0:33 | 6 | |
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2023-01-09 | The standard heat of formation values of S F 6 ,S and F are -1100 ,275 and 80 j per mol respectively | 0:50 | 5 | |
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2023-01-09 | The heat of dissociation of C H 4 and C 2 H 6 are 360 and 620 respectively.from these the c c bond | 0:43 | 6 | |
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2023-01-09 | 1 g of graphite is burnt in a bomb calormeter in excess of oxygen at 298 K and 1 atm pressure | 0:48 | 20 | |
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2023-01-09 | The combustion of one mole of benzene take place at 298 k and 1 atm after combustion C O 2 and | 0:45 | 51 | |
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2023-01-09 | delta H minus delta U for the formation of carbon monoxide from its elements at 298 K is | 0:17 | 6 | |
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2023-01-09 | For reaction 2 C O plus O 2 giving you 2 C O 2 delta H is -560 k j per mol. in 1 L vessel at 500 k | 0:46 | 7 | |
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2023-01-09 | 2023 01 09 15 05 22 | 0:25 | 9 | |
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2023-01-09 | The bond energy of an O H bond is 109 k cal per mole.when a mole of water is formed | 0:33 | 7 | |
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2023-01-09 | Given the bond energies of N N triple bond H H and N H bonds are 945,436 and 391 K J per mol | 0:45 | 7 | |
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2023-01-09 | Enthalpy of combustion of benzene is 718 K cal .when 39 gm of benzene undergoes the liberated is | 0:41 | 5 | |
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2023-01-09 | According to the equation C 6 H 6 plus 7 by 2 O 2 giving you 6 C O 2 plus 3 H 2 O delta H is -3264KJ | 0:32 | 7 | |
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2023-01-09 | if delta H for H 2 O 2 and H 2 O are -188 K j per mole and -286 K j per mole what is enthalpy change | 0:28 | 6 | |
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2023-01-09 | Heat of formation of Si O 2 and Mg O are -48.24 and -34.7 K J respectively.the heat of reaction is | 0:33 | 7 | |
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2023-01-09 | As per the reaction N 2 plus 2 O 2 giving you 2 N O 2 .Delta H is 66 k j. the molar heat of | 0:43 | 6 | |
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2023-01-09 | Energy required to dissociate 4 gm of H 2 into free atoms 200 K cal .the H H bond energy will be | 0:41 | 6 | |
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2023-01-09 | The enthalpy change when 1 g of water freezes at 0 degree Celsius and 1 atm is | 0:39 | 8 | |
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2023-01-09 | Given that C graphite giving C delta H 716.7 K J C diamond giving C delta H 714.8 K J .the Delta H | 0:46 | 6 | |
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2023-01-09 | If H plus O H - giving you H 2 O ,delta H is -57.3 K J then the heat of neutralization for complete | 0:41 | 8 | |
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2023-01-09 | If 9.8 g of H 2 S O 4 is neutralised exactly with Strong alkali the heat evolved is | 0:37 | 6 | |
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2023-01-09 | Equal volumes of molar H Cl and H 2 S O 4 are neutralised by dilute Na O H solution and x K cal and | 0:43 | 7 | |
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2023-01-09 | The heat of neutralisation of Na O H with H Cl is 57.3 K J and with H C N is 12.1 K J.the heat of | 0:35 | 7 | |
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2023-01-09 | If x K cal and y K cal are the Delta H values of ionisation of weak acid and weak base respectively. | 0:32 | 12 | |
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2023-01-09 | The density of a gas at S T P is 1.5 g per L at STP.Its molecular weight is | 0:34 | 88 | |
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2023-01-09 | The molecular weight of a gas is 64 .its density under STP condition is | 0:40 | 12 | |
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2023-01-09 | If the weight of 5.6 L of gas at STP is 11 g .the gas is | 0:34 | 49 | |
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2023-01-09 | The number of atoms present in 4.25 g of N H 3 is approximately | 0:31 | 7 | |
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2023-01-09 | The number of molecules present in one mL of a gas at STP is | 0:32 | 5 | |
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2023-01-09 | The volume of 1.5 g of atoms of helium gas under Standard conditions of pressure and temperature is | 0:35 | 14 | |
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2023-01-09 | Which of the following contain more number of mole of the substance in it | 0:35 | 6 | |
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2023-01-09 | Substance having more number of moles is | 0:33 | 6 | |
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2023-01-09 | When equal masses of methane and sulphur dioxide are taken then the ratio of their molecules is | 0:33 | 5 | |
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2023-01-09 | 0.5 g of a gas occupies 11.2 L at STP .the vol occupied by 0.25 mole of lighter gas at STP will be | 0:37 | 7 | |
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2023-01-09 | Volume occupied by 4 gm of ethylene at STP in L is | 0:11 | 5 | |
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2023-01-09 | If a gas absorb 200 J of heat and expands by 500 cm cube against a constant pressure of | 0:35 | 7 | |
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2023-01-09 | The % composition of 4 hydro carbons is as follows ,%C is 75,80,85.7,91.3 and % H 25,20,14.3,8.7 | 1:15 | 3 | |
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2023-01-09 | The work done when a gas compressed by an average pressure of atm so as to decrease its vol from | 1:15 | 2 | |
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2023-01-09 | A B ,A 2 and B 2 are diatomic molecules.if the bond enthalpy of A 2, AB and B 2 are in the ratio | 1:01 | 1 | Let's Play |
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2023-01-09 | Law of multiple is illustrated by one of the following pairs | 0:23 | 6 | |
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2023-01-09 | IIT JEE NEET MCQ Stoichiometry | 3:01 | 4 | |
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2023-01-09 | IIT JEE NEET MCQ Stoichiometry | 11:13 | 6 | |
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2023-01-08 | The work done in heating one mole of an ideal gas at constant pressure from 15 degree to 25 degree C | 0:22 | 13 | |
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2023-01-08 | The work done when 6.5 g of zinc react with dil HCL in an open beaker at 298 K is | 0:25 | 6 | |
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2023-01-08 | When work done by a system was 10 J the increase in the internal energy of the system was 30 J. | 0:20 | 9 | |
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2023-01-08 | The Liters of N 2 at 0 degree and 5 atm are expanded exothermally against a constant external | 0:34 | 8 | |
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2023-01-08 | A certain electric motor produced 15 K j of energy each second as numerical work and lost 2 K J as | 0:37 | 10 | |
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2023-01-08 | Temperature of 1 mole of a gas is increased by heat at constant pressure.work done is | 0:41 | 10 | |
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2023-01-08 | When 10 g of methane is completely burnt in oxygen,the heat evolved is 500 K J .what is the heat of | 0:35 | 10 | |
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2023-01-08 | Which of the following is an endothermic reaction? | 0:28 | 15 | |
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2023-01-08 | In an insulated container 1 mole of a liquid moalr vol 100 ml and 1 bar.liquid is steply taken to | 0:35 | 11 | |
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2023-01-08 | If a gas absorb 200 J of heat and expands by 500 cm cube against a constant pressure of 2*10^5 Nm^-2 | 0:35 | 11 | |
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2023-01-08 | A system absorbs 20 K J of heat and also done 10 K J of work.the net internal energy of the system | 0:30 | 9 | |
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2023-01-08 | IIT JEE NEET MCQ Surface chemistry Collidal State | 27:03 | 5 | |
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2023-01-07 | JEE NEET MCQ Surface chemistry Adsorption | 27:37 | 8 | |
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2023-01-07 | JEE NEET MCQ Chemistry Thermodynamics | 41:17 | 12 | |
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2023-01-07 | liquid strried in thermally insulated container for about 2hours.which of the following is correct | 0:31 | 12 | |
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2023-01-07 | 10 g of argon gas is compressed isothermally and reversibly at a temp of 27 degree C from 10L to 5L | 0:54 | 18 | |
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2023-01-07 | A gas expands from 1.5 to 6.5 L against a constant pressure of 0,5 atm and during this process the | 0:59 | 11 | |
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2023-01-07 | work done when a gas is compressed by an average pressure of 0.5atm so as to decrease its volume | 1:15 | 4 | |
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2023-01-07 | IIT JEE NEET MCQ Surface chemistry Catalysis | 13:46 | 11 | |
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2023-01-07 | JEE NEET MCQ Surface chemistry Catalysis | 12:03 | 3 | |
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2023-01-07 | JEE NEET MCQ Alkaline Earth metals s-block elements | 32:57 | 3 | |
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2023-01-07 | JEE NEET MCQ Alkali metals | 41:48 | 14 | |
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2023-01-06 | JEE NEET MCQ Nobel Gases p-Block 18 | 32:12 | 3 | |
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2023-01-06 | JEE NEET MCQ Chemistry p-Block 17 | 32:20 | 5 | |
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2023-01-06 | JEE NEET MCQ Chemistry p-Block 16 | 33:30 | 8 | |
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2023-01-06 | If centroid and orthocentre of a triangle are (1,2) and (9,-6) the circumcentre is | 1:09 | 5 | |
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2023-01-06 | If I1,I2 ,I3 are excenters of the triangle with vertices (0,0),(5,12),(16,12) then orthocentre of | 1:14 | 11 | |
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2023-01-06 | The sides of triangle ABC are BC=5,CA =4,AB=3.if A(0,0) and the bisector of the internal angle | 1:10 | 6 | |
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2023-01-06 | The in center of the triangle with vertices (0,0),(1,0),(0,1) is | 0:48 | 9 | |
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2023-01-06 | If A=(1,-1),B=(2,1),C=(3,0),then the circum-radius of triangle ABC is | 1:03 | 1 | |
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2023-01-06 | If O is origin and A=(1,2),B=(2,3),then the circum radius of triangle OAB is | 1:07 | 13 | |
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2023-01-06 | The first true metazoans are the | 0:13 | 3 | |
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2023-01-06 | Stinging animals were included in the phylum. | 0:23 | 3 | |
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2023-01-06 | Identify the first water cnidarian from the following | 0:18 | 2 | |
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2023-01-06 | Diploblastic body and Radial symmetry are present in | 0:17 | 0 | |
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2023-01-06 | Ploymorphism is exhibited by | 0:18 | 0 | |
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2023-01-06 | monoxial heteropolar symmetry is | 0:23 | 4 | |
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2023-01-06 | The structureless ,non cellular ,jelly like substance present between ectoderm and endoderm | 0:30 | 3 | |
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2023-01-06 | The most important character of the phylum cnidaria is | 0:16 | 1 | |
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2023-01-06 | The harmonic conjugate of (4,-2) with respect to (2,-4) and (7,1) is | 1:15 | 14 | |
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2023-01-06 | If the midpoint of the line joining (x,y+1) and (x+1,y+2) is (3/2,5/2) then the mid point of the | 1:30 | 1 | |
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2023-01-06 | The points (a,0)(0,b)(1,1) are collinear if | 1:10 | 2 | |
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2023-01-06 | If (3,2) ,(-3,2) ,(0,h) are the vertices of an equilateral triangle and h less than 0,then h= | 1:30 | 15 | |
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2023-01-06 | The distance between two points is 5,one of them is (3,2) and the ordinate of the second is -1 then | 1:36 | 2 | |
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2023-01-06 | Distance between the points {a cos (x+2pi/3),a sin(x+2 pi/3) and {acos (x+pi/3),a sin (x+pi/3) is | 1:12 | 12 | |
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