ALL IN ONE ISC Chemistry CLASS 11>Chapter 19 - Sample Question Paper 5>SAMPLE QUESTION PAPER 5>Q 3

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IMPORTANT

Earn 100

What is the physical significance of van der Waal's constants?

Important Questions on Sample Question Paper 5

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IMPORTANT

ALL IN ONE ISC Chemistry CLASS 11>Chapter 19 - Sample Question Paper 5>SAMPLE QUESTION PAPER 5>Q 3

What does universal gas constant (

R

) indicates?

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IMPORTANT

ALL IN ONE ISC Chemistry CLASS 11>Chapter 19 - Sample Question Paper 5>SAMPLE QUESTION PAPER 5>Q 4

Why does

{SO}_{3}

act as an electrophile?

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ALL IN ONE ISC Chemistry CLASS 11>Chapter 19 - Sample Question Paper 5>SAMPLE QUESTION PAPER 5>Q 5

{CH}_{2} = {CH}^{-}

is more basic than

{CH}_{} \equiv C^{-}

explain why ?

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ALL IN ONE ISC Chemistry CLASS 11>Chapter 19 - Sample Question Paper 5>SAMPLE QUESTION PAPER 5>Q 5

Why benzylic free radical is more stable than allylic free radical?

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IMPORTANT

ALL IN ONE ISC Chemistry CLASS 11>Chapter 19 - Sample Question Paper 5>SAMPLE QUESTION PAPER 5>Q 6

Identify ( $A$ )and ( $B$ ) in the following reaction:

${CH}_{3} - {CH}_{2} - COOH \overset{KOH}{\to} (A) \overset{Kolbe' s electrolyis}{\to} (B)$

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ALL IN ONE ISC Chemistry CLASS 11>Chapter 19 - Sample Question Paper 5>SAMPLE QUESTION PAPER 5>Q 7

An alkane has molecular mass of

72

, how many carbon atoms does the alkane molecule contain?

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ALL IN ONE ISC Chemistry CLASS 11>Chapter 19 - Sample Question Paper 5>SAMPLE QUESTION PAPER 5>Q 8

An alkene gives propanal and pentane-

3

-one on ozonolysis, what is the name and structure formula of the alkane?

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IMPORTANT

ALL IN ONE ISC Chemistry CLASS 11>Chapter 19 - Sample Question Paper 5>SAMPLE QUESTION PAPER 5>Q 9

Write methods of preparation of alkynes.