Which is the least polarizable gas among the following?
1. | He | 2. | Ne |
3. | Kr | 4. | Xe |
Aqueous solution of which of the following compounds is the best conductor of electric
current?
1. Acetic acid, C2H4O2
2. Hydrochloric acid, HCl
3. Ammonia, NH3
4. Fructose, C6H12O6
The correct order of solubility in an aqueous medium is:
1. CuS > ZnS > Na2S
2. ZnS > Na2S > CuS
3. Na2S > CuS > ZnS
4. Na2S > ZnS > CuS
Which of the following is the most basic oxide?
(1) Al2O3
(2) Sb2O3
(3) Bi2O3
(4) SeO2
Least stable hydride is:
(1) stannane
(2) silane
(3) plumbane
(4) germane
The correct statement about hydrolysis of and is-
1. is hydrolysed and gives but is not hydrolysed
2. Both and on hydrolysis gives
3. on hydrolysis gives but gives
4. Both and on hydrolysis gives
Select correct statement(s) :
(1) Acidic strength of but reverse is true for their reducing property
(2) Basic strength of but reverse is true for their bond angle
(3) Dipole moment of but reverse is true for their bond angle
(4) of fumaric acid is higher than maleic acid but reverse is true for their
OO bond length ( ) in and is respectively:
1. | 1.22 , 1.48 | 2. | 1.48 , 1.22 |
3. | 1.22 , 1.22 | 4. | 1.48 , 1.48 |
Cis-butene dioic acid
Trans-butene dioic acid
The incorrect statement regarding above the information is:
(1) species is more basic than species
(2) species is more basic than species
(3) is greater than
(4) is greater than
exists but does not because:
1. Nitrogen has no vacant d-subshells .
2. is unstable .
3. Nitrogen atom is much smaller than p .
4. Nitrogen is highly inert .