A. 1:1 B. 1:2 C. 2:1 D. 2:3 Correct Answer: Option A A. 1:1 Explanation 1g of Hydrocarbon = 0.93g…
A. pure samples of the same compound contain the same elements combined in the same proportion by mass B. pure…
A. increases as nuclear charge increases B. decreases as nuclear charge increases C. decreases as nuclear charge decreases D. remains…
A. Centrifugation B. Filtration C. Chromatography D. Distillation Correct Answer: Option A
2FeCl3+H2S→2FeCl2+2HCl+S A. +2 to +3 B. 0 to +2 C. +3 to +2 D. +3 to 0 Correct Answer: Option…
A. Cu2O B. CuO C. CuO2 D. CuO4 Correct Answer: Option B Explanation Cu : O 0.067 : 0.066 mole…
A. oxidised B. reduced C. decomposed D. dissociated Correct Answer: Option A Explanation Reaction: 2AgNO3+Zn→Zn(NO3)2+2Ag The oxidation number of Zn…
A. charge density of the atoms B. ductility of the metal C. number of valence electrons D. total number of…
A. < 7 B. > 7 C. = 7 D. 0 Correct Answer: Option A A. < 7 Explanation Cl2+H2O…
A. heat capacity B. boiling point C. mass D. colour Correct Answer: Option B B. boiling point Explanation Any pure…