(A) Bromine
(B) Chlorine
(C) Salt
(D) Sodium sulphate
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.
The periodic arrangement was the result of?
(A) Rutherford
(B) Bohr
(C) Mendeleev
(D) None of the above
__ is the reaction in which two or more substances combine together to form a single substance.
(A) Combination
(B) Combustion
(C) Addition
(D) Subtraction
A reaction in which a substance burns in oxygen to produce heat and flame is called?
(A) Combustion
(B) Decombustion
(C) Decomposition
(D) None of the above
__ is the short hand method to describing a chemical reaction.
(A) Radical Equation
(B) Chemical Equation
(C) Chemical Reaction
(D) None of the above
A reaction in which a chemical substance breaks down to form two or more simple substances is called?
(A) Combination reaction
(B) Decomposition reaction
(C) Combustion reaction
(D) Single replacement reaction
A change which alters the composition of a substance is called?
(A) Physical change
(B) Chemical change
(C) Chemical reaction
(D) None of the above
18 grams of H2O contains __ molecules.
(A) 6.02×1020
(B) 6.05×1023
(C) 6.05×1020
(D) 6.02×1023