(A) Decreases the group
(B) Increases down the group
(C) Remains constant throughout the group
(D) First increases then decreases down the group
Tag: Chemistry mcqs
Which of the following properties increases down the group in alkali metals?
(A) Electron affinity
(B) Reactivity
(C) Ionization energy
(D) Electronegativity
Which of the following molecule is covalent in nature?
(A) KCL
(B) AlCl3
(C) MgCl2
(D) NaCl
Oxygen has (+) oxidation number only in?
(A) H2O2
(B) N2O
(C) OF2
(D) None of the above
Burning pyrites ore gives out?
(A) Sulphur dioxide gas
(B) Carbon dioxide gas
(C) Nitric oxide gas
(D) None of the above
Which of the inert gases can form compounds?
(A) Argon
(B) Krypton
(C) Xenon
(D) Helium
Inorganic natural resource of the earth is?
(A) Coal
(B) Microbes
(C) Mineral fuels
(D) Wood
Among following which gas does not pollute air?
(A) Sulphur Dioxide
(B) Nitrogen Dioxide
(C) Carbon Dioxide
(D) Carbon Monoxide