What is the colour of the outer zone of complete combustion of candle flame?

What defines an ion?

The force of attraction between the particles of matter is maximum in______.

Magnesium oxide (MgO) + Water (H2O) = ?

Ethane gas has a slightly _____ taste.

What is the main chemical used in the production of matchsticks?

Which of the following pair of element – atomicity is correct?

I. Helium – monoatomic

II. Oxygen – triatomic

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 ?

The process of depositing a layer of any desired metal on another material by means of electricity is called:

Which chemical compound is commonly known as Pearl Ash?