A. diffusion rate B. temperature and pressure C. degree of solubility D. relative density Correct Answer: Option B B. temperature…
A. NH3 B. H2O C. CO2 D. CH4 Correct Answer: Option C C. CO2
A. pH value B. Electronegativity difference C. Heat of neutralization D. Heat of solution Correct Answer: Option B B. Electronegativity…
A. isotopy B. structural isomerism C. allotropy D. variable valency Correct Answer: Option C C. allotropy
A. -3 B. -2 C. +2 D. +4 Correct Answer: Option B B. -2
A. the nucleus loses two protons and two neutrons B. a proton combines with an electron giving off heat C.…
A. 6C, 4Be, 7N, 8O B. 4Be, 6C, 7N, 8O C. 8O, 7N, 6C, 4Be D. 7N, 8O, 6C, 4Be…
A. 15 B. 30 C. 35 D. 50 Correct Answer: Option C C. 35 Explanation Mass number = Protons =…
A. Belongs to group 6 of the Periodic Table B. Belongs to group IV of the Periodic Table C. has…
A. C2H10(g) + CI2(g) → C4H9CI(g) + HCI(g) B. C2H4(g) + HCI (g) → C2H5 CI(l) C. C2H2(g) + 2H2(g)…