Which of the following contains salts of H3PO3?
I. NaH2PO3 II. Na2HPO3 III. Na3PO3
1. I, and II only
2. I, II, and III
3. II and III only
4. III only
Which of the following statements is false?
1. ONCl and are isoelectronic.
2. molecule is bent
3. Ozone is violet-black in solid-state
4. Ozone is diamagnetic gas
Element/s that form pπ - pπ multiple bonds with themselves, as well as with carbon and oxygen are:
1. P, As
2. N, As
3. N, P
4. N
A substance that gives a brick red flame and breaks down on heating to give oxygen and a brown gas is:
1. Calcium carbonate
2. Magnesium carbonate
3. Calcium nitrate
4. None of the above
Nitrogen gas is liberated by the thermal decomposition of:
1.
2.
3.
4. All of the above.
Which of the following statements about the subsequent reactions is false?
\(XeF_6 + H_2O \text{(excess)} \longrightarrow\ 'X' + HF \)
\(XeF_6 + 2H_2O \longrightarrow\ 'Y' + HF \)
1. 'X' is explosive
2. 'Y' is an oxyacid of xenon
3. Both are example of non-redox reaction
4. can undergo partial hydrolysis
Which of the following compound does not exist?
1. XeOF4
2. NeF2
3. XeF2
4. XeF6
1. | H2Te | 2. | H2Se |
3. | H2O | 4. | H2S |
P forms multiple bonds in POCl3 by using
1.
2.
3.
4. None of the above.
Which of the following statements about phosphorus is false?
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 bond.