1
JEE Advanced 2022 Paper 2 Online
MCQ (Single Correct Answer)
+3
-1
Change Language
The reaction of $\mathrm{HClO}_{3}$ with $\mathrm{HCl}$ gives a paramagnetic gas, which upon reaction with $\mathrm{O}_{3}$ produces
A
$\mathrm{Cl}_{2} \mathrm{O}$
B
$\mathrm{ClO}_{2}$
C
$\mathrm{Cl}_{2} \mathrm{O}_{6}$
D
$\mathrm{Cl}_{2} \mathrm{O}_{7}$
2
JEE Advanced 2022 Paper 2 Online
MCQ (Single Correct Answer)
+3
-1
Change Language
The reaction of $\mathrm{Pb}\left(\mathrm{NO}_{3}\right)_{2}$ and $\mathrm{NaCl}$ in water produces a precipitate that dissolves upon the addition of $\mathrm{HCl}$ of appropriate concentration. The dissolution of the precipitate is due to the formation of
A
$\mathrm{PbCl}_{2}$
B
$\mathrm{PbCl}_{4}$
C
$\left[\mathrm{PbCl}_{4}\right]^{2-}$
D
$\left[\mathrm{PbCl}_{6}\right]^{2-}$
3
JEE Advanced 2020 Paper 1 Offline
MCQ (Single Correct Answer)
+3
-1
Change Language
A colourless aqueous solution contains nitrates of two metals, X and Y. When it was added to an aqueous solution of NaCl, a white precipitate was formed. This precipitate was found to be partly soluble in hot water to give a residue P and a solution Q. The residue P was soluble in aqueous NH3 and also in excess sodium thiosulphate. The hot solution Q gave a yellow precipitate with KI. The metals X and Y, respectively, are
A
Ag and Pb
B
Ag and Cd
C
Cd and Pb
D
Cd and Zn
4
JEE Advanced 2017 Paper 2 Offline
MCQ (Single Correct Answer)
+3
-0.75
Upon heating $$KCl{O_3}$$ in the presence of catalytic amount of $$Mn{O_2},$$ a gas $$W$$ is formed. Excess amount of $$W$$ reacts with white phosphorous to give $$X.$$ The reaction of $$X$$ with pure $$HN{O_3}$$ gives $$Y$$ and $$Z.$$
$$W$$ and $$X$$ are, respectively
A
$${O_3}$$ and $${P_4}{O_6}$$
B
$${O_2}$$ and $${P_4}{O_6}$$
C
$${O_2}$$ and $${P_4}{O_{10}}$$
D
$${O_3}$$ and $${P_4}{O_{10}}$$
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