The correct answer is D
Which element dominates the Earth's crust by percentage?
Soap is prepared by boiling caustic soda with -
The pH value of an acidic solution is:
Formula of ‘Quick Lime’ is __________
Which of the following metal have the highest Melting point?
What is the chemical formula of Urea, the best nitrogenous fertilizer?
Which of the following glands is a source of the enzyme Ptyalin?
Which gas is most abundant in the Earth's atmosphere?
Which catalyst is used in the hydrogenation of vegetable oils to make ghee?
Which process is used to obtain pure nickel?
