| 2023-03-21 | Select the correct statement(s):
P
(a) Lower value of quantum numbe... | 4:46 | 4 | |
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| 2023-03-21 | Select the correct statement(s):
(a) An electron near the nucleus i... | 7:09 | 0 | |
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| 2023-03-21 | For radial probability curves, which of the following is/are correc... | 3:54 | 1 | |
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| 2023-03-21 | The possible products are :
(a)
(b)
(c)
(d) | 4:58 | 24 | |
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| 2023-03-21 | \( \unrhd \)
\langle\rangle\( \underline{L} \square \) | 3:06 | 13 | |
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| 2023-03-21 | If a man of mass \( M \) jumps to the ground from a height \( h \) ... | 1:11 | 8 | |
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| 2023-03-21 | The existence of negatively charged particle in an atom was shown b... | 9:22 | 25 | Show |
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| 2023-03-21 | The existence of negatively charged particle in an atom was shown b... | 9:42 | 18 | Show |
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| 2023-03-21 | If hydrogen atoms (in the ground state) are passed through an homog... | 9:00 | 19 | |
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| 2023-03-21 | Ozone in the upper atmosphere absorbs ultraviolet radiation which i... | 6:19 | 3 | |
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| 2023-03-21 | Column-I and Column-II contain four entries in each. Entries of Col... | 11:12 | 19 | |
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| 2023-03-21 | An \( \alpha \)-particle having kinetic energy \( 5 \mathrm{MeV} \)... | 2:16 | 3 | Let's Play |
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| 2023-03-21 | Which is/are INCORRECT statement?
P
(a) Equivalent mass of \( \math... | 5:21 | 4 | |
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| 2023-03-21 | The variation of radial probability density \( R^{2}(r) \) as a fun... | 2:06 | 6 | |
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| 2023-03-21 | Calculate the total moles of atoms of each element present in \( 12... | 2:59 | 4 | |
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| 2023-03-21 | An electron in an atom jumps in such a way that its kinetic energy ... | 1:30 | 2 | |
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| 2023-03-21 | Which of the following statement does not form part of Bohr's model... | 2:59 | 1 | |
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| 2023-03-21 | If 1 mole of \( \mathrm{H}_{3} \mathrm{PO}_{4} \) reacts with 1 mol... | 8:32 | 7 | |
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| 2023-03-21 | A mixture of \( 100 \mathrm{~mL} \) of \( \mathrm{CO}, \mathrm{CO}_... | 10:12 | 5 | |
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| 2023-03-21 | When a equimolar mixture of \( \mathrm{Cu}_{2} \mathrm{~S} \) and \... | 5:10 | 4 | |
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| 2023-03-21 | Consider the following series of reactions :
\[
\begin{array}{l}
\m... | 3:11 | 4 | |
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| 2023-03-21 | The strength of \( \mathrm{H}_{2} \mathrm{O}_{2} \) is expressed in... | 10:48 | 3 | |
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| 2023-03-21 | Comprehension- :
The plane and point at which zero electron density... | 11:19 | 5 | |
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| 2023-03-21 | Consider the following series of reactions :
\( \mathrm{P} \)
\[
\b... | 2:10 | 7 | |
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| 2023-03-21 | Equivalent mass \( =\frac{\text { Molecular mass } / \text { Atomic... | 2:12 | 4 | |
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| 2023-03-21 | The strength of \( \mathrm{H}_{2} \mathrm{O}_{2} \) is expressed in... | 4:08 | 4 | |
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| 2023-03-21 | Equivalent mass \( =\frac{\text { Molecular mass } / \text { Atomic... | 2:31 | 5 | |
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| 2023-03-21 | A water is said to be a soft water if it produces sufficient foam w... | 3:22 | 3 | |
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| 2023-03-21 | Equivalent mass \( =\frac{\text { Molecular mass } / \text { Atomic... | 1:18 | 3 | |
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| 2023-03-21 | The strength of \( \mathrm{H}_{2} \mathrm{O}_{2} \) is expressed in... | 2:29 | 1 | |
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| 2023-03-21 | Oleum is considered as a solution of \( \mathrm{SO}_{3} \) in \( \m... | 3:08 | 4 | |
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| 2023-03-21 | Match the items in Column-I with the relevant item in Column-II.
\(... | 5:52 | 5 | |
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| 2023-03-21 | Dihydrogen reacts with dioxygen \( \left(\mathrm{O}_{2}\right) \) t... | 7:45 | 1 | |
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| 2023-03-21 | Atomic hydrogen combines with almost all
\( \mathrm{P} \) elements ... | 3:18 | 3 | |
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| 2023-03-21 | In case of \( s \) and \( p \)-orbital electrons, each of the
P \( ... | 3:30 | 1 | |
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| 2023-03-21 | Select the correct option(s):
(a) Pauli's exclusion principle state... | 5:48 | 6 | |
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| 2023-03-21 | An acidic solution of hydrogen peroxide behaves as an oxidizing as ... | 6:03 | 59 | |
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| 2023-03-21 | Which of the following configurations is associated with biggest ju... | 7:20 | 5 | |
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| 2023-03-21 | How will you account for \( 104.5^{\circ} \) bond angle in
P water?
W | 3:23 | 9 | |
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| 2023-03-21 | Which of the following statements is correct?
(a) Hydrides of group... | 7:39 | 3 | |
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| 2023-03-21 | Write the Lewis structure of hydrogen peroxide.
\( \mathrm{P} \)
W | 3:45 | 1 | |
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| 2023-03-21 | Assertion (A): Generally, ionization enthalpy increases from left t... | 5:29 | 3 | Let's Play |
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| 2023-03-21 | Why does hard water not form lather with soap?
\( \mathrm{P} \)
W
E... | 1:49 | 2 | |
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| 2023-03-21 | Which of the following atoms has the highest first ionization energ... | 4:41 | 12 | |
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| 2023-03-21 | Which of the following pairs of ions makes the Water hard?
\( \math... | 4:38 | 2 | |
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| 2023-03-21 | The molecule having permanent dipole moment is:
(a) \( \mathrm{SF}_... | 6:26 | 18 | |
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| 2023-03-21 | Among alkali metals which element do you expect to be least electro... | 4:23 | 0 | |
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| 2023-03-21 | Find the correct 2 nd ionization energy order from the
P following ... | 5:27 | 2 | |
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| 2023-03-21 | Select the correct order of electronegativity (E.N.):
(a) \( \mathr... | 4:09 | 5 | |
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| 2023-03-21 | The first ionization enthalpies of four consecutive elements presen... | 4:32 | 5 | Let's Play |
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| 2023-03-21 | The electronic configuration of the element which is just above the... | 4:03 | 4 | |
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| 2023-03-21 | The calculated value of magnetic moment of \( { }_{23} \mathrm{~V}^... | 3:26 | 0 | |
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| 2023-03-21 | Which one of the following grouping represents a collection of isoe... | 3:09 | 3 | |
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| 2023-03-21 | The increasing order of the first ionization enthalpies of the elem... | 6:55 | 6 | Let's Play |
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| 2023-03-21 | When a white crystalline compound \( X \) is heated with \( \mathrm... | 9:53 | 5 | |
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| 2023-03-21 | Which of the following sets represents the collection of isoelectro... | 3:45 | 1 | |
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| 2023-03-21 | When the elements \( \mathrm{Li}, \mathrm{Be} \), and \( \mathrm{B}... | 6:02 | 1 | |
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| 2023-03-21 | The process requiring the absorption of energy is:
(a) \( \mathrm{F... | 5:00 | 29 | |
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| 2023-03-21 | The radii of \( \mathrm{F}^{-} \mathrm{F}^{-}, \mathrm{O} \), and \... | 3:01 | 2 | |
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| 2023-03-21 | Select the correct order of I.E.:
\( \mathrm{P} \)
(a) \( \mathrm{C... | 5:13 | 2 | |
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| 2023-03-21 | Which of the following is isoelectronic with carbon atom?
P
(a) \( ... | 2:17 | 0 | |
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| 2023-03-21 | Which orbital fills completely immediately before the \( 4 f ? \)
P... | 3:20 | 5 | |
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| 2023-03-21 | How many unpaired electrons are in a gaseous \( \mathrm{Fe}^{2+} \)... | 2:17 | 2 | |
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| 2023-03-21 | Copper is the most noble of the first row transition elements. It o... | 4:18 | 1 | |
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| 2023-03-21 | \( p \)-Amino- \( N, N \)-dimethyl is added to a strongly acidic so... | 8:35 | 12 | |
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| 2023-03-21 | Consider the ions \( \mathrm{Li}^{+}, \mathrm{Na}^{+}, \mathrm{Be}^... | 3:02 | 1 | |
|
| 2023-03-21 | Ionic radii are:
(a) Inversely proportional to effective nuclear ch... | 3:30 | 1 | |
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| 2023-03-21 | Which property of an element is most dependent on the shielding eff... | 4:01 | 3 | |
|
| 2023-03-21 | One of the constituents of German silver is:
(a) \( \mathrm{Ag} \)
... | 3:44 | 0 | |
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| 2023-03-21 | Generally transition elements form colored salts due to the presenc... | 4:41 | 2 | |
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| 2023-03-21 | Copper is the most noble of the first row transition elements. It o... | 3:25 | 0 | |
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| 2023-03-21 | The halides of transition elements become more covalent with increa... | 5:23 | 10 | |
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| 2023-03-21 | Which of the following ions does not liberate hydrogen gas on react... | 4:11 | 7 | |
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| 2023-03-21 | Dipositive zinc exhibits paramagnetism due to los\& of two electron... | 3:25 | 1 | |
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| 2023-03-21 | Iron exhibits +2 and +3 oxidation states. Which of the following st... | 4:29 | 9 | |
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| 2023-03-21 | Consider the following reduction processes:
\[
\begin{array}{ll}
\m... | 2:50 | 7 | |
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| 2023-03-21 | Match the following:
Column-I
Column-II
\( \mathrm{P} \)
(a) \( \ma... | 6:51 | 5 | |
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| 2023-03-21 | Potassium manganate \( \left(\mathrm{K}_{2} \mathrm{MnO}_{4}\right)... | 4:45 | 5 | |
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| 2023-03-21 | Match coloum-I with coloum-II and select the correct answer using t... | 5:30 | 2 | |
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| 2023-03-21 | Reactivity of transition elements decreases almost regularly from \... | 2:45 | 3 | |
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| 2023-03-21 | The elements of the three transition series of the \( d \)-block ar... | 7:10 | 1 | |
|
| 2023-03-21 | Match the column:
\begin{tabular}{ll}
Column-I & \multicolumn{2}{l... | 3:52 | 8 | |
|
| 2023-03-21 | Which is not a transition element?
\( \mathrm{P} \)
(a) \( \mathrm{... | 4:06 | 1 | |
|
| 2023-03-21 | Match the molecules/ions (in Column-I) with their shapes (in Column... | 6:39 | 2 | |
|
| 2023-03-21 | Match the column:
Column-I Column-II
P
(Molecular consists of what
... | 6:38 | 2 | |
|
| 2023-03-21 | A nonmetallic element of group 13 , used in making bullet proof ves... | 4:54 | 5 | |
|
| 2023-03-21 | Among the following pairs of ions, the lower oxidation state in aqu... | 5:03 | 2 | |
|
| 2023-03-21 | Silver ornaments turn black in atmosphere:
\( \mathrm{P} \)
(a) \( ... | 2:24 | 2 | |
|
| 2023-03-21 | Match the column:
Column-I
Column-II
\( \mathrm{P} \)
(a) Dihydroge... | 5:01 | 34 | |
|
| 2023-03-21 | Comprehension-27: (Q.90 to \( Q .97) \)
A black colored compound \(... | 12:26 | 1 | |
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| 2023-03-21 | The angular shape of ozone molecule \( \left(\mathrm{O}_{3}\right) ... | 1:43 | 1 | |
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| 2023-03-21 | Out of \( \mathrm{H}_{2} \mathrm{O} \) and \( \mathrm{H}_{2} \mathr... | 2:33 | 3 | |
|
| 2023-03-21 | Match the following:
Column-I
Column-II
P
(a) \( \mathrm{BF}_{3} \)... | 5:24 | 7 | |
|
| 2023-03-21 | Match the reactions of metals with dilute \( \mathrm{HNO}_{3} \) (i... | 4:18 | 1 | |
|
| 2023-03-21 | Match the following:
Column-I (a) \( \mathrm{BBr}_{3}+\mathrm{H}_{2... | 2:39 | 2 | |
|
| 2023-03-21 | Match the following:
Column-I
Column-II
\( \mathrm{P} \)
(a) \( \ma... | 2:33 | 2 | |
|
| 2023-03-21 | Match the column:
Column-I Column-II
\( \mathrm{P} \)
(a) \( \mathr... | 4:54 | 17 | |
|
| 2023-03-21 | Comprehension-24: (Q.81 to Q. 83) Read the following sequence of re... | 9:54 | 6 | |
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| 2023-03-21 | Which of the following statements in relation to the hydrogen atom ... | 2:58 | 4 | |
|
| 2023-03-21 | Comprehension-30: (Q. 104 to Q. 108)
Identification of cations can ... | 5:37 | 3 | |
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