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The species that does not contain peroxide ions is:
1. PbO₂
2. H₂O₂
3. SrO₂
4. BaO₂

By heating which of the following, would NO₂ be produced?
1. NaNO₃
2. AgNO₃
3. NH₄NO₃
4. NH₄NO₂

Oxidation of nitrogen among the following reactions is indicated by -
1. \(\mathrm{N}_2 \rightarrow 2 \mathrm{NH}_3 \)
2. \(\mathrm{N}_2 \mathrm{O}_4 \rightarrow 2 \mathrm{NO}_2 \)
3. \(\mathrm{NO}_3{ }^{-} \rightarrow \mathrm{N}_2 \mathrm{O}_5 \)
4. \(\mathrm{NO}_2^{-} \rightarrow \mathrm{NO}_3^{-}\)

Which of the following has been arranged in order of decreasing bond dissociation energy:
1. P-O>Cl-O>S-O
2. P-O>S-O>Cl-O
3. S-O>Cl-O>P-O
4. Cl-O>S-O>P-O

Which set of oxide of nitrogen is paramagnetic in nature?
(1) NO, N₂O
(2) NO₂, NO, N₂O
(3) NO,NO₂
(4) N₂O,NO₂

Compound among the following with an S-S bond is :
1. H₂S₂O₇
2. H₂SO₅
3. H₂S₂O₈
4. H₂S₂O₆

The 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

The product obtained as a result of a reaction of nitrogen with CaC₂ is:
1. CaCN         
2. CaCN₃
3. Ca₂CN       
4. CaCN₂

The variation of the boiling point of the hydrogen halides is in the order HF > HI > HBr >
HCl. What explains the higher boiling point of hydrogen fluoride?
1. The electronegativity of fluorine is much higher than for other elements in the group
2. There is strong hydrogen bonding between HF molecules
3. The bond energy ol HF molecules is greater than in other hydrogen halides
4. The effect of nuclear shielding is much reduced in fluorine which polarises the HF
molecule

Nitrogen gas is liberated by 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    

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?
(1) ${\mathrm{BF}}_3$                           
(2) ${\mathrm{NCl}}_3$
(3) ${\mathrm{SF}}_4$                           
(4) ${\mathrm{PCl}}_5$

In which of the following reaction product does not contain 'Peroxy' 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 these 

$\mathrm{MF}+{\mathrm{XeF}}_4 \stackrel{}{\to }\text{'}\mathrm{A}\text{'} ({\mathrm{M}}^{+}=\mathrm{Alkali} \mathrm{metal} \mathrm{cation})$
The state of hybridisation of the central atom in 'A' and shape of the species are:
$\left(\mathrm{a}\right) s{p}^{3}d, \mathrm{TBP}$
$\left(\mathrm{b}\right) s{p}^{\mathit{3}}{d}^3, \mathrm{pentagonal} \mathrm{planar}$
$\left(\mathrm{c}\right) s{p}^{\mathit{3}}{d}^2, \mathrm{distorted} \mathrm{octahedral}$
$\left(\mathrm{d}\right) \mathrm{No} \mathrm{compound} \mathrm{formed} \mathrm{at} \mathrm{all}$

${\mathrm{XeF}}_6$ dissolves in anhydrous $\mathrm{HF}$ to give a good conducting solution that contains-
1. H⁺ and \(XeF_{7}^{-}\) ions
2. \(HF_{2}^{-}\) and \(XeF_{5}^{+}\) ions
3. \(HXeF_{6}^{+}\) and F^- ions
4. None of the above

Incorrect statement regarding following reactions is :

(a) 'X' is explosive
(b) 'Y' is an oxyacid of xenon
(c) Both are example of non-redox reaction
(d) ${\mathrm{XeF}}_6$ can undergo partial hydrolysis

Which of the following noble gas does not form clathrate compound?
$\left(\mathrm{a}\right) \mathrm{Kr}$
$\left(\mathrm{b}\right) \mathrm{Ne}$
$\left(\mathrm{c}\right) \mathrm{Xe}$
$\left(\mathrm{d}\right) \mathrm{Ar}$

$N{H}_{4}Cl{O}_4+HN{O}_3\left(dilute\right)\to HCl{O}_4+\left[X\right]$
$\left[X\right]\stackrel{∆}{\to }Y\left(g\right)$
$\left[X\right]$ and $\left[Y\right]$ are respectively.
(a) $N{H}_{4}N{O}_3 and N_{2}O$       (c) $N{H}_{4}N{O}_2 and N_2$
(b) $HN{O}_4 and O_2$                (d) None

Which one of the following does not exist?
1. XeOF₄
2. NeF₂
3. XeF₂
4. XeF₆ 

Which of the following hydrides is most acidic
(1) H₂Te
(2) H₂Se
(3) H₂O
(4) H₂S

Which of the following oxide is most acidic
(1) Na₂O
(2) Al₂O₃
(3) P₂O₅
(4) SO₃

The least acidic oxide among the following is:
1. P₄O₆ 
2. P₄O₁₀ 
3. As₄O₆ 
4. As₄O₁₀ 

Moist ammonia gas is dried over
(1) P₂O₅
(2) Anhydrous CaCl₂
(3)Quick lime
(4)Conc. H₂SO₄

In the compounds of the type POX₃, the P atom multiple bond is of the type
(1) $p\mathrm{\pi }-\mathrm{p\pi }$
(2) $d\mathrm{\pi }-\mathrm{d\pi }$
(3) $p\mathrm{\pi }-\mathrm{d\pi }$
(4) None of these

Which of the following statement is not true for phosphorus?

The basicity of the acids H₃PO₂, H₃PO₃, H₃PO₄  and H₄P₂O₇ are respectively
(A) 1,2,3,7
(B) 2,3,4,7
(C) 1,2,3,4
(D) 1,2,3,5

Which of the following flourides has the least capacity as fluoride ion acceptor
(1)AsF₅
(2) SbF₅
(3) PF₅
(4) None of these

The ionic character of H-X is highest in
(1) HBr
(2) HI
(3) HF
(4)HCl

The strongest acid is
(1) H₃PO₂ 
(2) H₃PO₃ 
(3) H₄P₂O₇ 
(4) H₃PO₄ 

The strength of halogen acids, HF, HCl, HBr, and HI varies in the order
1. HF>HCl>HBr>HI
2. HF>HBr>HI>HCl
3. HBr>HI>HCl>HF
4. HI>HBr>HCl>HF

Why does fluorine not produce oxyacids?
1. It is most electronegative
2. It is the most powerful oxidising agent
3. It has vacant d- orbitals
4. None of the above

Which of the following does not form stable pentoxide
1. As
2. Sb
3. Bi
4. P

F₂ reacts with dilute NaOH to give oxygen difluroide. The formula is
(1) F₂O
(2) OF₂
(3) F₂O₂
(4) F₂O₃

Which of the following oxyacids of chlorine is least tendency to get oxidise?
(1) HOCl
(2) HClO₂
(3) HClO₃
(4) HClO₄

Which of the following is most basic
(1) F^-
(2) Cl^-
(3) Br^-
(4) $I^{\mathit{-}}$

Of the hydrides, $H_{2}O, H_{2}Se, and H_{2}Te$, the one which has the smallest pK_a value is
1. H₂O
2. H₂S
3. H₂Se
4. H₂Te

The shape of $Cl{O}_3^{-}$ is
(1) Tetrahedral
(2) Triangular planer
(3) Triangular pyramid
(4) Planer

Oxygen does not form OF₆ because
1. It has a small size
2. There are no vacant d- orbitals available
3.  It has high ionization energy
4. It has a large size

The molecule having the smallest bond angle is
(1) H₂O
(2) H₂S
(3) H₂Te
(4) H₂Se

Oxide of a non-metal possesses the following characterstics.
(i) It is both a proton donor and proton acceptor
(ii) It is poor conductor of electricity
(iii) It reacts readily with basic and acidic oxides
(iv) It oxidises Fe at boiling point.
The oxide is
(1) H₂O
(2) CO₂
(3) H₂O₂
(4) NO

A yellow metallic powder is burnt in a stream of fluorine to obtain a colourless gas X which is thermally stable and chemically inert. Its molecule has octahedral geometry. Another colourless gas Y with same constituent atoms as that of X is obtained when sulphur dichloride is heated with sodium fluoride. Its molecule has triangular pyramidal structure X and Y are
(1) SF₄ and S₂F₂
(2)  SF₆ and  SF₄ 
(3) NaF and NaCl
(4)  SF₄ and SF₆ 

${\mathrm{NO}}_2$ is the anhydride of
1. ${\mathrm{HNO}}_3$
2. ${\mathrm{HNO}}_2$
3. ${\mathrm{HNO}}_3+{\mathrm{HNO}}_2$
4. None of these

Which hydride possesses the maximum complex-forming nature?
(1) $N{H}_3$
(2) $P{H}_3$
(3) $Bi{H}_3$
(4) $Sb{H}_3$