Question

S
Question 48.
Which of the following has three types of hydrogens in the following compounds?
a)Br-CH=CH2
b)CH3 -CH2-CH;
c)C6H3CH2
d)CH3-CH2-CH(CH3)-N02
)​

Answer 1

Answer:

Br-CH=CH2 because they have 3 hydrogen

Answer 2

Answer:

The correct answer is Option D i.e. CH3-CH2-CH(CH3)-N02.

Explanation:

i) In organic chemistry, carbons and hydrogens are named as primary, secondary and tertiary depending on their bonds.

ii) If a carbon atom is attached to only one other carbon atom, it is called primary. If it is attached to two carbon atoms, it is called secondary, and so on.

iii) Similarly, for hydrogen, hydrogen atoms attached to primary carbon atom are called primary, hydrogen atoms attached to secondary carbon atoms are called secondary and so on.

iv) In given options, CH3-CH2-CH(CH3)-N02 has all three types of hydrogen atoms present.

v) Hence, the correct option is Option D i.e. CH3-CH2-CH(CH3)-N02.

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