Physics
Water is not suitable as a calorimetric substance because it :

Is a good conductor
Has high specific heat
Has high boiling point
Low latent heat of vapourization

ANSWER DOWNLOAD EXAMIANS APP

Physics
Scalar Quantities are

Physical quantities which have no magnitude only and only direction
Physical quantities which have magnitude only and direction
Physical quantities which have magnitude only and no direction
Physical quantities which have no magnitude and no direction

ANSWER DOWNLOAD EXAMIANS APP