The correct statement among the following regarding behavior of in water is -
1. | BCI 3 readily undergoes hydrolysis while CCI 4 completely resists hydrolysis. |
2. | CCI 4 readily undergoes hydrolysis while BCI 3 completely resists hydrolysis. |
3. | Both BCI 3 and CCI 4 readily undergo hydrolysis. |
4. | Neither BCI 3 nor CCI 4 undergo hydrolysis. |
Boric acid is a-
1. Protic acid.
2. Weak monobasic acid.
3. Lewis acid.
4. Both '2' and '3'
The effect of heating Boric acid at 370 K or above is -
1. Orthoboric acid changes to metaboric acid.
2. Metaboric acid changes to boric oxide.
3. Both '1' and '2'
4. Neither '1' nor '2'
CO is a poisonous gas because :
1. | It forms a complex with hemoglobin. |
2. | The CO–Hb complex is about 300 times more stable than the O 2 –Hb complex. |
3. | It can kill a person through suffocation on not receiving oxygen. |
4. | All of the above. |
Amphoteric oxides are:
1. Tl2O3, SiO2
2. ,
3. ,
4. Al2O3 , PbO2
Boric acid is polymeric due to-
1. Its acidic nature.
2. The presence of hydrogen bonds.
3. Its monobasic nature.
4. Its geometry.
The incorrect statement among the given options is :
1. | CO2 can be prepared by the action of dilute hydrochloric acid on calcium carbonate. |
2. | CO is prepared by the dehydration of formic acid with conc. H2SO4. |
3. | CO2 is commercially prepared by passing steam over hot coke. |
4. | CO is commercially prepared by passing steam over hot coke. |
The correct reaction(s) among the following options is/are -
1.
2.
3.
4. All of the above
The incorrect statement among the given options is-
1. | Inert pair effect is because of the poor shielding of the ns2 electrons by the d- and f- electrons. |
2. | Allotropy is the existence of an element in more than one form. |
3. | Catenation is the bonding of atoms of the same element into a series, called a chain. |
4. | None of the above. |
The correct statement(s) regarding diborane and boric acid is/are-
1. Diborane has two 3c-2e- bonds.
2. Boric acid has a layered structure.
3. Four 2c-2e- bonds are present in diborane.
4. All of the above