(A) Density
(B) Energy
(C) Volume
(D) Entropy
The Answer is : (A) Density
Category: Chemistry MCQs Class 11
Chemistry MCQs questions with answers of class 11 or first year. HSSC Part-I chemistry multiple choice questions from past papers.
Heat absorbed by a system when its volume does not change is equal to :
(A) Internal energy
(B) Work done by a system
(C) Increase in internal energy
(D) Change in enthalpy of system
The Answer is : (A) Internal energy
The value of R (general gas constant) in S.I Unit is:
(A) 8.3143 J/K.mole
(B) 8.3143 N.m/ .mole
(C) 0.0821 N.m/ .mole
(D) 0.0821 N.m/K.mole
Answer: (A) 8.3143 J/K.mole
The value of R (general gas constant) in S.I Unit is 8.3143 J/K.mole.
Bohr’s Atomic model is contradicted by:
(A) Planck’s Quantum Theory
(B) Chadwick Experiment
(C) Heisenberg uncertainty Principle
(D) Faraday’s Law
Answer: (C) Heisenberg uncertainty Principle
Bohr’s Atomic model is contradicted by Heisenberg uncertainty Principle.
The e ⁄ m value of electron is :
(A) 1.758×1011 c/kg
(B) 0.000550 c/kg
(C) 1.008 c/kg
(D) 9.11×10-28 c/kg
Answer: (A) 1.758×1011 c/kg
The e ⁄ m value of electron is 1.758×1011 c/kg.