Which set of oxide of nitrogen is paramagnetic in nature?

(1) NO, N₂O

(2) NO₂, NO, N₂O

(3) NO,NO₂

(4) N₂O,NO₂

S-S bond is present in

(1) H₂S₂O₇

(2) H₂SO₅

(3) H₂S₂O₈

(4) H₂S₂O₆

Bleaching action of SO₂ is due to its

(1) acidic property

(2) basic property

(3) reducing property

(4) oxidising property

Which is not hydrolysed with water?

(1) PCl₃

(2) NF₃

(3) NCl₃

(4) BCl₃

Ammonia on reaction with excess of chlorine gives

(1) NCl₃ and HCl

(2) N₂ and NH₄Cl

(3) NCl₃ and NH₄Cl

(4) N₂ and HCl

Nitrogen gas is liberated by the thermal decomposition of:

1. ${\mathrm{NH}}_4{\mathrm{NO}}_2$                                 

2. ${\mathrm{NaN}}_3$

3. ${\left({\mathrm{NH}}_4\right)}_2{\mathrm{Cr}}_2{\mathrm{O}}_7$                           

4. All of the above. 

Consider the following sequence of reaction.

$\mathrm{Na}+{\mathrm{NH}}_3\left(\mathrm{g}\right)\underset{}{\to }\left[\mathrm{X}\right]\stackrel{{\mathrm{N}}_2\mathrm{O}}{\to }\left[\mathrm{Y}\right]\stackrel{\mathrm{Heat}}{\to }\underset{\mathrm{Gas} \mathrm{Pure}}{\left[\mathrm{Z}\right]}$

Identify [Z] gas :

$\left(\mathrm{a}\right) {\mathrm{N}}_2$

$\left(\mathrm{b}\right) {\mathrm{NH}}_3$

$\left(\mathrm{c}\right) {\mathrm{O}}_2$

$\left(\mathrm{d}\right) {\mathrm{H}}_2$

Which of the following compound does not produce oxyacid of central atom on hydrolysis?

(a) ${\mathrm{BF}}_3$                            (b) ${\mathrm{NCl}}_3$

(c) ${\mathrm{SF}}_4$                            (d) ${\mathrm{PCl}}_5$

In which of the following reaction product does not contain 'Peroxide linkage?

1. $2\mathrm{OF}\stackrel{\mathrm{Dimerisation}}{\to }$                               

2. ${\mathrm{H}}_4{\mathrm{P}}_2{\mathrm{O}}_8\stackrel{+{\mathrm{H}}_2\mathrm{O}}{\to }$

3. $2\mathrm{Na}\underset{∆}{\overset{\mathrm{excess} {\mathrm{O}}_2}{\to }}$                                   

4.  None of the above

$\mathrm{MF}+{\mathrm{XeF}}_4 \stackrel{}{\to }\text{'}\mathrm{A}\text{'} ({\mathrm{M}}^{+}=\mathrm{Alkali} \mathrm{metal} \mathrm{cation})$

The state of hybridisation of the central atom in 'A' and shape of the species are:

$\left(\mathrm{a}\right) s{p}^{3}d, \mathrm{TBP}$

$\left(\mathrm{b}\right) s{p}^{\mathit{3}}{d}^3, \mathrm{distorted} \mathrm{octahedral}$

$\left(\mathrm{c}\right) s{p}^{\mathit{3}}{d}^3, \mathrm{pentagonal} \mathrm{planar}$

$\left(\mathrm{d}\right) \mathrm{No} \mathrm{compound} \mathrm{formed} \mathrm{at} \mathrm{all}$