(A) Atomic mass
(B) Mass number
(C) Atomic number
(D) None of the above
Category: Chemistry Mcqs
Chemistry Mcqs for NTS, PPSC, FPSC, SPSC, KPPSC, AJKPSC, PMS, NAT, PTS, Educators, Lecturer and all other exams. Chemistry Mcqs portion will cover mcqs related to Acids, bases, PH,
atomics structure, electrochemistry, thermochemistry, periodic table, chemicals, atomic theory, chemical bonding, Transition metals, periodic table facts, compounds, properties of organic compounds, covalent bond,
Ionic bond and all other topics related to chemistry will be covered here.
Number of isotopes of hydrogen is?
(A) 01
(B) 02
(C) 03
(D) 05
__ are the atoms of the same elements having same number of protons but different number of Neutrons.
(A) Isomers
(B) Polymers
(C) Isotopes
(D) None of the above
Number of proton+number of neutron is the __ of an element.
(A) Atomic number
(B) Ionic mass
(C) Mass number
(D) None of the above
Atomic number of sodium is?
(A) 09
(B) 10
(C) 11
(D) 12
Which model says that atom consists of small, dense, positively charged nucleus which is surrounded by electrons revolving around it?
(A) John Dalton’s atomic model
(B) Rutherford’s model of the atom
(C) Bohr’s model of the atom
(D) None of the above
What is the atomic weight of uranium?
(A) 237
(B) 238
(C) 240
(D) 242
Enzymes are?
(A) Organic catalyst
(B) Biological catalyst
(C) Chemical catalyst
(D) Inorganic catalyst