A gaseous mixture contains 0,256 g of hydrogen and 2.00 g of oxygen. The mole ration of hydrogen to oxygen in the mixture is (H=1.00; O=16,0)

The two elements 11X and 19Y are in the same group because they have the same

The shape of CH4 is

Which of the following processes is used in food preservation in an industry?

Which of the following transition metals is not attracted to external magnetic field?

Hydrogen bonds are formed between molecules containing a hydrogen atom bonded to a

The crystal layers in graphite are held together by

Which of the following arrangements is in decreasing order of atomic radius?

The electron configuration of \({Fe}_26 {^3+}\) is?