Practice Ssc questions answers set 1 - general science mcq Online Quiz (set-1) For All Competitive Exams
Q-1) What is the mass number of an element, the atom of which contains two protons, two neutrons and two electrons?
(a)
(b)
(c)
(d)
Q-2) What is the mass (in grams) of 3 moles of N?
(a)
(b)
(c)
(d)
Q-3) The correct symbol for silver is
(a)
(b)
(c)
(d)
Q-4) The chemical symbol for barium is
(a)
(b)
(c)
(d)
Q-5) An atom of carbon has 6 protons. Its mass number is 12. How many neutrons are present in an atom of carbon?
(a)
(b)
(c)
(d)
Q-6) A group of atoms chemically bonded together is a (an)
(a)
(b)
(c)
(d)
In a molecule two or more than two atoms are convalently bonded with each other.
Q-7) The total number of atoms represented by the compound CuSO4 .5H2O is
(a)
(b)
(c)
(d)
1 atom of Cu + 1 atom of sulphur + 9 atoms of oxygen + 10 atoms of hydrogen.
The total number of atoms in the compound is 21.
Q-8) Adding electrons to an atom will result in a (an)
(a)
(b)
(c)
(d)
e.g., Cl + e- ⟶ Cl- (anion)
Q-9) Which of the following is not a part of an atom?
(a)
(b)
(c)
(d)
Q-10) Members of which of the following have similar chemical properties ?
(a)
(b)
(c)
(d)