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Viva questions for Physics Class 12
विज्ञान 10 – महत्वपूर्ण MCQs
Fundamentals of Arithmetic
Science 10 – Important MCQs

Important Compounds used in Organic Chemistry Quiz 01

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Question 1 of 11

1. Question

What is/are the composition of the Lindlar catalyst?

Palladium on an aluminum support deactivated with poisons like sulphur compounds or quinoline

palladised charcoal partially deactivated with poisons like lead or sulphur compounds or quinoline

Palladium on a calcium carbonate support deactivated with poisons like sulphur compounds or quinoline

Palladised charcoal deactivated with poisons like aluminium compounds or Phosphorus

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Question 2 of 11

2. Question

What is the main function of the Lindlar catalyst?

Hydrogenation of alkynes to alkanes

Reduction of alkenes to alkanes

Reduction of alkynes to alkenes

Hydrogenation of alkynes to alkenes

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Question 3 of 11

3. Question

What makes the Lindlar catalyst selective in its hydrogenation reactions?

The addition of lead

The addition of quinoline

The use of a calcium carbonate support

All of the mentioned

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Question 4 of 11

4. Question

What is the role of lead/sulphur in the Lindlar catalyst?

To increase the rate of hydrogenation

To improve the selectivity of the catalyst

To prevent over-reduction of the substrate

To stabilize the palladium on the support

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Question 5 of 11

5. Question

Hydrogenation of alkynes in presence of Lindlar catalyst gives

cis-alkene

trans-alkene

alkane and alkene both

alkene only

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Question 6 of 11

6. Question

What is alcoholic potash?

A strong base

A strong acid

A weak base

A weak acid

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Question 7 of 11

7. Question

What is the chemical name of alcoholic potash?

Sodium hydroxide

Potassium hydroxide

Calcium hydroxide

Magnesium hydroxide

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Question 8 of 11

8. Question

What is the use of alcoholic potash in organic chemistry?

To neutralize acidic compounds

To protonate alkaline compounds

To deprotonate acidic compounds

To alkylate alkaline compounds

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Question 9 of 11

9. Question

Which is/are true about sulphuric acid?

Concentrated sulphuric acid is a strong dehydrating agent.

Sulphuric acid removes water from organic compounds. It has charring action on carbohydrates.

Many dried gases can be wet by passing them through sulphuric acid

Concentrated sulphuric acid is a strong hydrating agent.

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Question 10 of 11

10. Question

Which is/are true about sulphuric acid?

Hot concentrated sulphuric acid is a moderately strong oxidising agent

Sulphuric acid is highly volatile

Sulphuric acid is strong acid

Sulphuric acid is a colourless, dense, oily liquid

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Question 11 of 11

11. Question

Arrange the following on the basis of increasing oxidizing strength:

nitric acid

phosphoric acid

sulphuric acid

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Points Table
Viva questions for Physics Class 12
विज्ञान 10 – महत्वपूर्ण MCQs
Fundamentals of Arithmetic
Science 10 – Important MCQs

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