atomic structure molecules and nuclear chemistry - Category wise Question and Answer Practice Test with Solutions

Question : 31

Which formula gives the maximum number of electrons in a shell?

a) 3n²

b) 2n²

c) n²

d) 4n²

Question : 32 [BPSC (Pre) 2011]

A single type of atom is found in

a) Mixture of minerals

b) Native elements

c) Compounds of minerals

d) None of the above

Question : 33 [RAS/RTS (Pre) 2003]

The atomic nucleus was discovered by

a) Dalton

b) Einstein

c) Rutherford

d) Thomson

Question : 34 [CDS]

Heavy water implies

a) deuterated water

b) water which contains SO₄^2- and CI– of calcium and magnesium

c) water which is used in heavy industries such as thermal power plants

d) water which has maximum density

Question : 35 [BPSC (Pre) 1996]

Isotopes is that nuclei of atomic nucleus in which

a) Number of protons is same but number of neutrons is different

b) Number of both protons and neutrons is same

c) Number of neutrons is same but number of protons is different

d) Number of both protons and neutrons is different