Which of the following is a characteristic of  the

100 gram of ice at 0°C is mixed with 100 gram of water at 80°C. What will be the final temperature of the mixture ?

Red light is used for signals because it has –

Acid rain is caused due to pollution of the atmosphere by:

The rate of a reaction depends on:

Plants absorb dissolved nitrates from soil and convert them into

Metallurgy is the process of:

If water smells bad, then that odor can be removed by adding:

Which of the following isotope of hydrogen is radioactive in nature?

Which is the lightest and most abundant chemical element, constituting roughly 75 % of the Universe’s elemental mass?

The anode in a dry cell consists of: