The species that does not contain peroxide ions is:
1. PbO2
2. H2O2
3. SrO2
4. BaO2
The formation of is difficult as compared to because
1. Lone pair of phosphorous is optically inert.
2. Lone pair of phosphorous resides in almost pure p - orbital.
3. Lone pair of phosphorous resides at sp3 orbital.
4. Lone pair of phosphorous resides in almost pure s - orbital.
Iodine on reaction with concentrated nitric acid forms:
1. HOI
2. HI
3. HIO3
4. HIO4
Which of the following is the correct statement?
1. F2 has higher dissociation energy than Cl2
2. F has higher electron affinity than Cl
3. HF is stronger acid than HCl
4. Boiling point increases down the group in halogens
An oxyacid among the following that contains both P-H and
P-P bonds simultaneously is:
1. H4P2O5
2. H4P2O7
3. H4P2O6
4. None of the above
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
\(\mathrm{PCl}_3\) upon hydrolysis gives an oxyacid of phosphorous.
The basicity of that oxyacid is:
1. | One | 2. | Two |
3. | Three | 4. | Four |
Which set of oxide of nitrogen is paramagnetic in nature?
(1) NO, N2O
(2) NO2, NO, N2O
(3) NO,NO2
(4) N2O,NO2
Correct order of boiling point of group 16 hydrides
(1) H2O<H2S<H2Se<H2Te
(2) H2Te<H2Se<H2S<H2O
(3) H2S<H2Se<H2Te<H2O
(4) H2O<H2Te<H2Se<H2S
Which is incorrectly given according to the order indicated?
(1)F2>Cl2>Br2>I (Oxidizing power)
(2)HI>HBr>HCl>HF (Acidic Strength)
(3)F2>Cl2>Br2>I2 (Bond Energy)
(4) HF>HI>HBr>HCl (Boiling point)
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
The following solid exists in the form of ions:-
(1) BI3
(2) BCl3
(3) BF3
(4) CaBO2
Which is correctly given according to other indicated?
1. F2<Cl2<Br2<I2 (oxidising Power)
2. HI>HBr>HCl>HF (Acidic strength)
3. Cl2<Br2<F2<I2 (Bond Energy)
4. HF< HI<HCl< HBr (Boiling point)
AlF3 is soluble in HF only in presence of KF. It is due to the formation of
(1) K3[AIF3H3]
(2) K3[AIF6]
(3) AlH3
(4) K[AIF3H]
Copper on heating with concentrated HNO3 produces:
1. Cu(NO3)2 and NO
2. Cu(NO3)2, NO and NO2
3. Cu(NO3)2 and N2O
4. Cu(NO3)2 and NO2
Compound (A),(B) and (C) will be respectively :
(a) (b)
(c) (d)