The correct answer is B
The element used in the manufacture of safety matches is —
The chemical name of'Common salt’
The pH of a neutral solution is —
The noble gas used in radiotherapy is
The major component of honey is-
The nucleus of an atom consists of-
Urea is a —
The gas used for filling weather balloons is-
Which of the following is a physical change?
The fuel that is used in modern submarines is -
