23 × 20 + ? = 182 + 92 + 82
ATQ, 23 × 20 + ? = 182 + 92 + 72 460 + ? = 324 + 81 + 82 ? = 487 - 460 ? = 27
Sylvine is a mineral ore of which element?
Hydrogen exhibits properties similar to which groups in the periodic table?
The chemical name of the Vitamin B6 is
Which one of the following is not a ‘Greenhouse Gas’?
What is the chemical name of bleaching powder?
What is the chemical name of quick lime?
Which of the following rock is not sedimentary rock?
Oil and water can form a stable dispersion with the help of a substance commonly called a(n):
The function of quick lime in soda lime mixture is to
Radon, used in radiotherapy, belongs to which group on the periodic table?
