A. 16 B. 48 C. 40 D. 12 Correct Answer: Option B - 48
A. greater than their atomic radii B. unaffected by the charge on the ion C. the same as their atomic…
A. decreasing B. increasing C. constant D. neutral Correct Answer: Option C - decreasing Explanation In electro-valency, the oxidation number…
A. aniline B. xylene C. phenol D. toluene Correct Answer: Option D - toluene Explanation Toluene is used in making…
A. the litmus turns blue but no gas is evolved B. the litmus turns blue and oxygen is evolved C.…
A. Sodium B. Magnesium C. Iron D. Copper Correct Answer: Option D - Copper Explanation Metals above hydrogen in the…
A. amount of ions present and their mobilities B. mobilities of the ions present C. amount of ions present D.…
A. Spring water B. River water C. Tap water D. Sea water Correct Answer: Option C - Tap water Explanation…
A. it is insoluble in either dilute or concentrated trioxonitrate (V) acid B. it is lower than hydrogen in the…
A. phosphorus (V) oxide B. fused calcium chloride C. calcium chloride D. concentrated tetraoxosulphate (VI) acid Correct Answer: Option D…