A. Blue B. Red C. Orange D. Purple Correct Answer: Option D - Purple Explanation Neutral litmus paper is purple.…
A. NH3 CO and CO2 B. CO and C C. N2, CO and CO2 D. NH3 and CO Correct Answer:…
A. X-rays B. β - rays C. α - rays D. γ - rays Correct Answer: Option A = X-rays
A. Calcium Chloride B. Calcium Oxide C. Phosphorus(V) Oxide D. Concentrated H2SO4 Correct Answer: Option B - Calcium Oxide
A. 3 B. 2 C. 4 D. 5 Correct Answer: Option C - 4
A. Carbonyl group B. Hydroxyl group C. Phenyl group D. Methyl group Correct Answer: Option B - Hydroxyl group
A. In making bicycle chains B. As abrasives C. In cutting glass and metals D. As dies for drawing wires…
A. NO B. CO C. SO2 D. CuO Correct Answer: Option C - SO2
A. Zn B. Sn C. Cn D. Ca Correct Answer: Option B - Sn
A. Elements in the same group have the same number of electron shells B. The non-metallic properties of the elements…