The structural formula of an ester is shown below: Write the formula of the acid and the alcohol from which it is formed.

This is the structure of ethyl ethanoate. It is an ester. An alcohol and a carboxylic acid reacts in the presence of concentrated sulphuric acid to form an ester. This process is called esterification. The alcohol used in the formation of ethyl ethanoate is ethanol with the chemical formula C 2 H 5 OH and the acid used is ethanoic acid whose chemical formula is CH 3 COOH . The chemical reaction between the two is shown below. C 2 H 5 OH ethanol + CH 3 COOH ethanoic acid → H 2 SO 4 CH 3 COOCH 2 CH 3 ethyl ethanoate + H 2 O

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Science for Tenth Class Part - 2 Chemistry>Chapter 4 - Carbon And its Compounds>Multiple Choice Questions (MCQs)>Q 61

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The substance which can produce brisk effervescence with baking soda solution is :

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Important Questions on Carbon And its Compounds

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Science for Tenth Class Part - 2 Chemistry>Chapter 4 - Carbon And its Compounds>Multiple Choice Questions (MCQs)>Q 62

The chemical which is not required for the preparation of soap in the laboratory is :

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Science for Tenth Class Part - 2 Chemistry>Chapter 4 - Carbon And its Compounds>Multiple Choice Questions (MCQs)>Q 63

Which of the following can damage optic nerve leading to blindness, if taken internally ?

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Science for Tenth Class Part - 2 Chemistry>Chapter 4 - Carbon And its Compounds>Multiple Choice Questions (MCQs)>Q 64

The usual disease caused by the excessive drinking of alcohol over a long period of time is :

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Science for Tenth Class Part - 2 Chemistry>Chapter 4 - Carbon And its Compounds>Multiple Choice Questions (MCQs)>Q 65

Which of the following molecular formula corresponds to ethyl butanoate ester?

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Science for Tenth Class Part - 2 Chemistry>Chapter 4 - Carbon And its Compounds>Questions Based on High Order Thinking Skills(HOTS)>Q 66

A neutral organic compound

X

of molecular formula

C_{2} H_{6} O

on oxidation with acidified potassium dichromate gives an acidic compound

Y

. Compound

X

reacts with

Y

on warming in the presence of conc.

H_{2} {SO}_{4}

to give a sweet smelling substance

Z

. What are

X, Y

and

Z

?

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Science for Tenth Class Part - 2 Chemistry>Chapter 4 - Carbon And its Compounds>Questions Based on High Order Thinking Skills(HOTS)>Q 67

Consider the following organic compounds:

$HCHO, C_{2} H_{5} OH, C_{2} H_{6}, {CH}_{3} COOH, C_{2} H_{5} Cl$

Choose two compounds which can react in the presence of concentrated $H_{2} {SO}_{4}$ to form an ester. Give the name and formula of the ester formed.

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Science for Tenth Class Part - 2 Chemistry>Chapter 4 - Carbon And its Compounds>Questions Based on High Order Thinking Skills(HOTS)>Q 68

A neutral organic compound is warmed with some ethanoic acid and concentrated