H2O2 behave as a bleaching agent because :
1. | It acts as a strong oxidizing agent both in acidic and basic media. |
2. | It acts as a strong reducing agent both in acidic and basic media. |
3. | It acts as a strong oxidizing agent only in neutral media. |
4. | It acts as a strong reducing agent only in neutral media. |
The catalyst used to increase the production of H2 , by ‘coal gasification' process is -
1. Copper
2. FeCr2O4 (iron chromate)
3. Pd/C
4. None of the above.
Hydrogen is placed separately in the periodic table because :
1. It resembles alkali metals.
2. It shows the same reactions as halogens.
3. Both (1) and (2)
4. None of the above.
NH3 is an example of :
1. Electron rich hydride
2. Electron-precise hydride
3. Electron deficient hydride
4. None of the above
Incorrect statement regarding structure of H2O and H2O2 is:
1. In gaseous phase, water molecule has a bent form.
2. Bond angle of water is
3. Hydrogen peroxide has a non-planar structure.
4. The dihedral angle of H2O2 in gas phase is 111.5°
The reaction that is not an example of a hydrolysis reaction is-
1.
2.
3.
4.
The following reaction is an example of :
\(2 \mathrm{MnO}_4^{-}+6 \mathrm{H}^{+}+5 \mathrm{H}_2 \mathrm{O}_2 \rightarrow 2 \mathrm{Mn}^{2+}+8 \mathrm{H}_2 \mathrm{O}+5 \mathrm{O}_2\)
1. Hydrolysis reaction
2. Redox reaction
3. Disproportionation reaction
4. None of the above
The reaction in which hydrogen peroxide acts as a reducing agent is/are-
1.
2.
3.
4. All of the above
Hydrolysis and hydration are:
1. Different chemical process
2. Same chemical process
3. Can be used simultaneously
4. All of these
The incorrect statement among the following options is:
1. K+ ions react with alkaline water and give K(OH)3
2. KCl is a salt of strong acid and strong base.
3. Al(OH)3 in alkaline condition gives [Al(OH)4]-
4. AlCl3 is a salt of strong acid and weak base.