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)
(2)
(3)
(4) All
Consider the following sequence of reaction.
Identify [Z] gas :
Which of the following compound does not produce oxyacid of central atom on hydrolysis?
(1)
(2)
(3)
(4)
In which of the following reaction product does not contain 'Peroxy' linkage?
1.
2.
3.
4. None of these
The state of hybridisation of the central atom in 'A' and shape of the species are:
dissolves in anhydrous 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) can undergo partial hydrolysis
Which of the following noble gas does not form clathrate compound?
and are respectively.
(a) (c)
(b) (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)
(2)
(3)
(4) None of these
Which of the following statement is not true for phosphorus?
1. | It is non-metal. |
2. | It exists as a tetrahedral molecular solid. |
3. | It is less reactive than nitrogen. |
4. | P-P bond is much weaker than N≡N bond. |
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)
Of the hydrides, , the one which has the smallest pKa value is
1. H2O
2. H2S
3. H2Se
4. H2Te
The shape of 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
is the anhydride of
1.
2.
3.
4. None of these
Which hydride possesses the maximum complex-forming nature?
(1)
(2)
(3)
(4)