(A) 35%
(B) 42%
(C) 46%
(D) 55%
Tag: Inorganic Chemistry
Chemical formula based on actual number of molecules is called?
(A) Simples formula
(B) Molecular formula
(C) Empirical formula
(D) Structure formula
Number of protons are equal to the number of __ in a neutral atom.
(A) Nucleons
(B) Electrons
(C) Photons
(D) None of the above
Who introduced the concept of atom with central necleus?
(A) Louis De Broglie
(B) Crooks
(C) Bohr
(D) Rutherford
Maximum water vapour content in the atmosphere is?
(A) 2 to 3 Percent
(B) 3 to 4 Percent
(C) 4 to 5 Percent
(D) 5 to 6 Percent
Aqua regia is a 1:3 mixture by volume of?
(A) concentrated Sulphuric acid and concentrated Nitric acid
(B) Concentrated Nitric acid and concentrated Hydrochloric acid
(C) concentrated Nitric acid and concentrated Sulphuric acid
(D) concentrated Hydrochloric acid and concentrated Nitric acid
Which three metals are all liquid at 300 C?
(A) Hg, Ga, Cs
(B) Zn, Pb, Sn
(C) Hg, Sn, Pb
(D) Hg, Fe, Zn
Total number of sigma bonds found in the CH3-CH=C=CH-C ≡C-H compound are?
(A) 08
(B) 10
(C) 11
(D) 15