Physics
In very cold countries alcohol is used as a thermometric liquid because

Its freezing point is very low
Alcohol can be coloured for its level to be seen easily
It will not stick to the glass tube
Alcohol is a poor conductor of heat

ANSWER DOWNLOAD EXAMIANS APP

Physics
Two identical solid pieces, one of gold and other of silver, when immersed completely in water exhibit equal weights. When weighed in air (given that density of gold is greater than that of silver)

The silver piece will weigh more
The gold piece will weigh more
Weighing will depend on their masses
Both silver and gold pieces weigh equal

ANSWER DOWNLOAD EXAMIANS APP