1
JEE Advanced 2020 Paper 1 Offline
MCQ (More than One Correct Answer)
+4
-2
Change Language
With respect to hypochlorite, chlorate and perchlorate ions, choose the correct statement(s).
A
The hypochlorite ion is the strongest conjugate base.
B
The molecular shape of only chlorate ion is influenced by the lone pair of electrons of Cl.
C
The hypochlorite and chlorate ions disproportionate to give rise to identical set of ions.
D
The hypochlorite ion oxidises the sulphite ion.
2
JEE Advanced 2019 Paper 2 Offline
MCQ (More than One Correct Answer)
+4
-1
Change Language
Consider the following reactions (unbalanced).

$$Zn + Hot\,conc.\,{H_2}S{O_4}\mathrel{\mathop{\kern0pt\longrightarrow} \limits_{}} G + R + X$$

$$Zn + conc.\,NaOH\mathrel{\mathop{\kern0pt\longrightarrow} \limits_{}} T + Q$$

$$G + {H_2}S + N{H_4}OH\mathrel{\mathop{\kern0pt\longrightarrow} \limits_{}} Z\,(a\,precipitate) + X + Y$$

Choose the correct option(s).
A
The oxidation state of Zn in T is +1
B
R is a V-shaped molecule
C
Bond order of Q is 1 in its ground state
D
Z is dirty white in colour
3
JEE Advanced 2019 Paper 1 Offline
MCQ (More than One Correct Answer)
+4
-1
Change Language
A tin chloride Q undergoes the following reactions (not balanced)

$$Q + C{l^ - } \to X$$

$$Q + M{e_3}N \to Y$$

$$Q + CuC{l_2} \to Z + CuCl$$

X is a monoanion having pyramidal geometry. Both Y and Z are neutral compounds.

Choose the correct option(s).
A
There is a coordinate bond in Y
B
The central atom in Z has one lone pair of electrons.
C
The oxidation state of the central atom in Z is +2
D
The central atom in X is sp3 hybridised
4
JEE Advanced 2018 Paper 1 Offline
MCQ (More than One Correct Answer)
+4
-1
Change Language
The compounds(s) which generate(s) $${N_2}$$ gas upon thermal decomposition below $${300^ \circ }C$$ is (are)
A
$$N{H_4}N{O_3}$$
B
$$\left( {N{H_4}} \right){}_2C{r_2}O{}_7$$
C
$$Ba{\left( {{N_3}} \right)_2}$$
D
$$M{g_3}{N_2}$$
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