Question

An alkyne having molecular mass 10x (A) is treated with Lindlar's catalyst and H2, to give compound (B). (B) reacts with
HCl to give (C). (C) reacts with metallic sodium in the presence of dry ether gives (D). If molecular mass of 'D'is 86g. What
the value of 'x'.​

Answer 1

Answer:

CHARACTERISTICS OF SOUND:

Loudness: The degree of the sensation produced on the ear is known as LOUDNESS of

sound. It is expressed in decibels (dB).

Example: Sound produced from drums in the school assembly.

Feebleness: The lack of volume or loudness is known as FEEBLENESS of sound.

Example: Sound produced while taking pledge in the school assembly.

Loudness and feebleness of a sound are measured in decibels(dB)

Amplitude: The maximum displacement of a vibrating body from its mean position is

known as AMPLITUDE.

Loudness and feebleness of a sound depend on AMPLITUDE of vibration.

Pitch: The Shrillness of a sound is known as PITCH.

Explanation:

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1. thanks my answer.....