Consider the following reaction.
Cl2 + H2 → A
H2 + Na → B
H2 + CuO → C  + H2O

A, B and C in the above mentioned reaction are respectively-

1. A= HCl; B= NaH2; C= Cu2O
2. A= HCl; B= NaH; C= Cu2O
3. A= No reaction; B= NaH; C= Cu
4. A= HCl; B= NaH; C= Cu

Subtopic:  Preparation & Properties |
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The hydrides of N, O and F has the higher boiling points than the hydrides of their subsequent group members because-

1. Lower molecular masses of NH3, H2O and HF
2. Strong hydrogen bonding in NH
3, H2O and HF
3. Strong vanderwall forces in NH
3, H2O and HF
4. None of the above

Subtopic:  Type of Hydride |
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Assertion(A): Phosphorus with outer electronic configuration 3s23p3 form PH5 .
Reason(R): Hydrogen atom unable to contracts 3d orbital of phosphorus.

1. Both assertion and reason are true, and reason is the correct explanation of the assertion.

2. Both assertion and reason are true, but reason is not the correct explanation of the assertion.

3. Assertion is true but reason is false.

4. Assertion is false but reason is true.

Subtopic:  Hydrogen- Types & Isotopes |
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The number of hydrogen-bonded water molecule(s) associated with CuSO4.5H2O are-

1. 2
2. 3
3. 1
4. 5

Subtopic:  Water |
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The strength of 10 volume solutions of hydrogen peroxide is-

1. 6%
2. 10%
3. 0.1%
4. 3%

Subtopic:  H2O2 (Hydrogen Peroxide) |
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