The isotopes of hydrogen and their mass ratio are -

1. Protium, Deuterium, Tritium ; 3:2:3

2. Protium, Deuterium, Tritium ; 1:2:3

3. Protium, Deuterium, Tritium ; 2:2:3

4. Protium, Deuterium, Tritium ; 3:2:1

Subtopic:  Hydrogen- Types & Isotopes |
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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 |
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The colour of hydrogen is –

1. Blue                           

2. Yellow

3. Orange                       

4. No colour

Subtopic:  Hydrogen- Types & Isotopes |
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Hydrogen exists in diatomic form rather than monoatomic form under normal conditions -

1. Due to high ionization enthalpy

2. Due to low ionization enthalpy

3. Due to high electron gain enthalpy

4. Due to low electron gain enthalpy

Subtopic:  Hydrogen- Types & Isotopes |
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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 |
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The incorrect statement among the following regarding hydrogen is -

1. Hydrogen never acts as a cation in Ionic salts

2. Hydronium ion, H3O+, exists freely in a solution

3. Dihydrogen does not act as a reducing agent

4. Hydrogen has three isotopes of which Protium is the most common

Subtopic:  Hydrogen- Types & Isotopes |
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An isotope that is used as a tracer in a chemical reaction is-

1. H11

2. H12

3. H13

4. Ortho hydrogen

Subtopic:  Hydrogen- Types & Isotopes |
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Para hydrogen is-

1. Less stable than ortho hydrogen.

2. More stable than ortho hydrogen.

3. As stable as ortho hydrogen.

4. None of the above.

Subtopic:  Hydrogen- Types & Isotopes |
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A compound among the following that has hydrogen in the atomic state is –

1. Metallic hydrides                           

2. Ionic hydrides

3. Molecular hydrides                       

4. Water

Subtopic:  Hydrogen- Types & Isotopes | Preparation & Properties |
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