(A) Number of electrons
(B) Number of protons
(C) Number of neutrons
(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.
Ions gains which charge when electrons are added?
(A) Positive charge
(B) Negative charge
(C) Becomes neutral
(D) All are correct
Ions gains which charge when electrons are removed?
(A) Positive charge
(B) Negative charge
(C) Becomes neutral
(D) All are correct
An atom is how much times bigger than nucleus?
(A) 1000
(B) 5000
(C) 8000
(D) 10000
Nucleus have?
(A) Only neutrons
(B) Only electrons
(C) Neutrons and Protons
(D) Electrons and Protons
First evidence of existence of an atom is recorded by?
(A) John Dalton
(B) Joseph John Thomson
(C) Eugene Goldstein
(D) Rutherford
Which is the hardest known natural mineral?
(A) Graphite
(B) Diamond
(C) Tungsten
(D) Cobalt
Avagodro’s number is?
(A) 6.02×1024
(B) 6.02×1023
(C) 6.00×1023
(D) 6.62×1023