Saline hydrides can remove traces of water from organic compounds because :

1. They react with water to form a metal hydroxide along with the liberation of oxygen gas.
2. They react with water to form a metal hydroxide along with the liberation of hydrogen gas.
3. They react with water to form a metal carbonate along with the liberation of oxygen gas.
4. They react with water to form a metal carbonate along with the liberation of hydrogen gas.

Subtopic:  Type of Hydride |
 79%
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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.

Subtopic:  H2O2 (Hydrogen Peroxide) |
 75%
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The catalyst used to increase the production of H, by ‘coal gasification' process is -

1. Copper 

2. FeCr2O4 (iron chromate) 

3. Pd/C 

4. None of the above.

Subtopic:  Hydrogen- Types & Isotopes |
 68%
From NCERT
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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.

Subtopic:  Hydrogen- Types & Isotopes |
 93%
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NH3 is an example of :

1. Electron rich hydride

2. Electron-precise hydride

3. Electron deficient hydride

4. None of the above

Subtopic:  Type of Hydride |
 77%
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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 109.0°

3. Hydrogen peroxide has a non-planar structure.

4. The dihedral angle of H2Oin gas phase is 111.5° 

Subtopic:  Water | H2O2 (Hydrogen Peroxide) |
 70%
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The reaction that is not an example of a hydrolysis reaction is-

1. PbS(s) +H2O2(aq) PbSO4(s) + H2O(l)

2. CaO(s) + H2O(g)  Ca(OH)2 (aq)

3. AlCl3(g) + 3H2O(l) Al2O3(s) + 6HCl(aq)

4. Ca3N2(s) + 6H2O(l) 3Ca(OH)2(aq) + 2NH3(g)

Subtopic:  Water |
 63%
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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

Subtopic:  Preparation & Properties | H2O2 (Hydrogen Peroxide) |
 68%
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The reaction in which hydrogen peroxide acts as a reducing agent is/are-

1. Mn+2 +H2O2  Mn+4 +2OH-

2. PbS +4H2O2  PbSO4 +4H2O

3. I2 + H2O2 + 2OH-  2I- +2H2O+ O2

4. All of the above

Subtopic:  H2O2 (Hydrogen Peroxide) |
 65%
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Hydrolysis and hydration are:

1. Different chemical process

2. Same chemical process

3. Can be used simultaneously

4. All of these

Subtopic:  Water |
 70%
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