1. Law of conservation of mass was presented by:
(A) Lavoisier
(B) Dalton
(C) Rutherford
(D) Boyle
2. Law of conservation of mass was presented in:
(A) 1585
(B) 1785
(C) 1685
(D) 1885
3. Law of constant proportion was put forward by:
(A) Lavoisier
(B) Proust
(C) Rutherford
(D) Dalton
4. Richter put forward law of reciprocal proportion in:
(A) 1785
(B) 1795
(C) 1799
(D) 1792
5. In water, ratio of hydrogen and oxygen is:
(A) 2:1
(B) 1:2
(C) 1:8
(D) 1:4
6. The weight ratio of carbon and oxygen in carbon dioxide is:
(A) 1:2
(B) 1:8
(C) 2:1
(D) 1:4
7. Law of multiple proportion was given by:
(A) Lavoisier
(B) Rutherford
(C) Dalton
(D) Boyle
8. Law of multiple proportion was given in:
(A) 1801
(B) 1802
(C) 1804
(D) 1803
9. Which law states that mass amount does not change in reaction?
(A) Law of constant proportion
(B) Law of conservation of mass
(C) Law of reciprocal proportions
(D) Law of multiple proportions
10. Chemical formula of silver nitrate is:
(A) AgNO₃
(B) NaNO₃
(C) HCl
(D) None of these