A. filtration B. adding slaked lime C. adding caustic soda D. boiling Correct Answer: Option C - adding caustic soda
A. krypton B. argon C. helium D. neon Correct Answer: Option D - neon
A. number of shells B. atomic number C. chemical properties D. physical properties Correct Answer: Option A - number of…
A. 2 B. 8 C. 18 D. 32 Correct Answer: Option B = 8
A. have no electron in their outermost shells B. have duplet or octet electron configurations C. belong to group zero…
A. 3 B. 2 C. 1 D. none Correct Answer: Option A - 3
A. decrease in nuclear charge B. increase in nuclear charge C. decrease in screening effect D. increase in screening effect…
A. water vapour in the air around the bottle gains some energy from the bottle B. temperature of the milk…
A. 8.5% B. 13.1% C. 17.1% D. 27.6% Correct Answer: Option C = 17.1%
A. Common salt B. Blood C. Sand D. Washing soda Correct Answer: Option B - Blood