Question

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Please answer this question:-

Q. Hydrocarbon X and Y have melting point - 190°C or -90°C respectively. Which one of these has minimum carbon in the molecule and why?​

Answer 1

$\huge\bf\mathscr\pink{Your\: Answer}$

hydrocarbon X

step-by-step explanation:

given that,

The melting points of

hydrocarbon X = -190° C

hydrocarbon Y = -90° C

Clearly,

-90° C > -190° C

Thus,

the melting point of

hydrocarbon Y > hydrocarbon X

now,

we know that,

as the melting point is higher,

it means that molecule has more molecular mass,

it means it has more carbon atoms

so,

hydrocarbon Y has more carbon atoms,

hence,

hydrocarbon X has minimum no. of carbon atoms.

Answer 2

Speed

The physical quantity which remains constant in uniform circular motion is Speed. Uniform circular motion means that the body is moving along a circular path with constant speed.