\[
\begin{array}{l}
(X)+\mathrm{K}_{2} \mathrm{CO}_{3}+\text { Air } \stackrel{\text { heat }}{\...
\[
\begin{array}{l}
(X)+\mathrm{K}_{2} \mathrm{CO}_{3}+\text { Air } \stackrel{\text { heat }}{\longrightarrow}(Y) \\
(Y)+\mathrm{Cl}_{2} \longrightarrow(Z) \text { Pink }
\end{array}
\]
P
Which of the following is correct ?
W
(a) \( X= \) black, \( \mathrm{MnO}_{2}, Y= \) Blue, \( \mathrm{K}_{2} \mathrm{CrO}_{4}, Z=\mathrm{KMnO}_{4} \)
(b) \( X= \) green, \( \mathrm{Cr}_{2} \mathrm{O}_{3}, Y= \) Yellow, \( \mathrm{K}_{2} \mathrm{CrO}_{4}, Z=\mathrm{K}_{2} \mathrm{Cr}_{2} \mathrm{O}_{7} \)
(c) \( X= \) black, \( \mathrm{MnO}_{2}, Y= \) green, \( \mathrm{K}_{2} \mathrm{MnO}_{4}, Z=\mathrm{KMnO}_{4} \)
(d) \( X= \) black; \( \mathrm{Bi}_{2} \mathrm{O}_{3}, Y= \) colourless, \( \mathrm{KBiO}_{2}, Z=\mathrm{KBiO}_{3} \)
📲PW App Link - https://bit.ly/YTAI_PWAP
🌐PW Website - https://www.pw.live
Other Videos By PW Solutions
2022-12-13 | The advantage(s) of using \( \mathrm{O}_{2} \) rather than air in the steel industry is(are)
(I)... |
2022-12-13 | - The oxoanion which contains all equivalent \( M-\mathrm{O} \) bond is :
(I) \( \mathrm{CrO}_{4... |
2022-12-13 | Zinc (II) ion on reaction with \( \mathrm{NaOH} \) first give a white precipitate which dissolve... |
2022-12-13 | A fair die is tossed eight times. Probability that on the eighth throw a third six is observed i... |
2022-12-13 | The probability that the persons \( P_{1} \) and \( P_{2} \) will die in a year are \( p \) and ... |
2022-12-13 | A.M. of \( C_{0}, 2 C_{1}, 3 C_{2}, \ldots,(n+1) C_{n} \), where \( (1+x)^{n}=C_{0}+C_{1} x+C_{2... |
2022-12-13 | The set \( \left\{x: x^{2} \neq x\right\} \) may be equal to
(A) \( \{0\} \)
(B) \( \{1\} \)
(C)... |
2022-12-13 | Variance is independent of
(A) origin only
(B) scale only
(C) origin and change of scale
(D) non... |
2022-12-13 | Mercury on heating with aqua-regia gives :
(a) \( \mathrm{Hg}\left(\mathrm{NO}_{3}\right)_{2} \)... |
2022-12-13 | Zinc carbonate is precipitated from zinc sulphate solution by the addition of :
(a) \( \mathrm{N... |
2022-12-13 | \[
\begin{array}{l}
(X)+\mathrm{K}_{2} \mathrm{CO}_{3}+\text { Air } \stackrel{\text { heat }}{\... |
2022-12-13 | . Dilute nitric acid on reaction with silver liberates :
(a) NO gas
(b) \( \mathrm{NO}_{2} \) ga... |
2022-12-13 | Passivity of iron is due to formation of :
(a) \( \mathrm{Fe}_{2} \mathrm{O}_{3} \)
(b) \( \math... |
2022-12-13 | When steam is passed over red hot iron, the substances formed are :
(a) \( \mathrm{Fe}_{2} \math... |
2022-12-13 | In context of the lanthanoids, which of the following statements is not correct?
(a) Availabilit... |
2022-12-13 | Oxygen in absorbed by molten Ag, which is evolved on cooling and the silver particles are scatte... |
2022-12-13 | Mark the correct statements :
(a) \( \mathrm{Hg} \) forms an amalgam with iron
\( \mathrm{P} \)
... |
2022-12-13 | Locus of trisection point of any double ordinate of \( y^{2}=4 a x \) is
(A) \( 3 y^{2}=4 a x \)... |
2022-12-13 | Mean of \( n \) times is \( \bar{x} \). If these \( x \) items are successively increased by \( ... |
2022-12-13 | If \( G \) is the G.M. of the product of \( r \) sets of observations with geometric means \( G_... |
2022-12-13 | Geometric mean of \( 1,2,2^{2}, 2^{3}, \ldots \ldots, 2^{n} \) is :
(A) \( 2^{\frac{2}{n}} \)
(B... |