(A) 0 K
(B) 273 K
(C) 100 K
(D) 373 K
Answer: (D) 373 K
Boiling point of water at S.T.P is 373 K .
Author: MCQsLoader
44 a.m.u. of carbon dioxide is called its:
(A) Molar mass
(B) Molecular mass
(C) Atomic mass
(D) Mass number
Answer: (B) Molecular mass
Molecular mass of carbon dioxide is 44 a.m.u.
Einstein’s mass energy equivalence is given by E = __________ .
(A) mv
(B) mc2
(C) mc
(D) mv2
Answer: (B) mc2
Einstein’s mass energy equivalence is given by E = mc2.
Charge of the electron is equivalent to:
(A) 1.6 x 10-16 Coulomb
(B) 1.602 x 10-17 Coulomb
(C) 1.67 x 10-18 Coulomb
(D) 1.602 x 10-19 Coulomb
Answer: (D) 1.602 x 10-19 Coulomb
Charge of the electron is equivalent to 1.602 x 10-19 Coulomb.
Which of the following pair of elements is chemically similar?
(A) K, Cr
(B) Cu, Ca
(C) F, Cl
(D) N, O
Answer: (C) F, Cl
F, Cl Is a pair of element is chemically similar.