Which statement about carbon credits is incorrect?
The nucleus of an atom consists of-
Which is the third lightest halogen?
The chemical name of the Vitamin B6 is
The gas usually causing explosions in coal mines is-
Which of the following is NOT classified as a Noble gas?
The first nuclear reactor made in India is named:
Which of the following gas is used to fill balloons.
Which mineral is also known as 'plumbago'?
The combining power of an element is called its:
