Chemistry
The heat required to raise the temperature of body by 1 K is called

water equivalent
specific heat
thermal capacity
None of these

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Chemistry
A solution is

A solid dissolved in a liquid
A homogeneous mixture of two or more substances
A solid dissolved i water
A mixture of two liquids

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Chemistry
Metal are good conductors, because

The molecules in them are very close to each other
They contain free electrons
They contain reflecting surface
The molecules in them collide very freely

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