(A) Plastic
(B) Diamond
(C) Sodium Chloride
(D) Glucose
Tag: Biochemistry
Identify the molecule with double covalent bond?
(A) O2
(B) H2
(C) N2
(D) C2H2
Alkali metals belongs to?
(A) 1st group
(B) 2nd group
(C) 3rd group
(D) 4th group
Modern periodic table consists of?
(A) Two Blocks
(B) Three Blocks
(C) Four Blocks
(D) Five Blocks
Isotopes of Hydrogen are?
(A) 1
(B) 2
(C) 3
(D) 4
One AMU atomic mass unit is equat to?
(A) 1.66×10-24mg
(B) 1.66×10-24g
(C) 1.66×10-23g
(D) 1.66×10-24kg
The most abundant element occurring in the earth crust by weight is?
(A) Silicon
(B) Oxygen
(C) Aluminium
(D) Iron
Which metal is more malleable?
(A) Gold
(B) Sodium
(C) Iron
(D) Silver