A. Low temperature and high pressure B. Low temperature and low pressure C. high temperature and low pressure D. high…
A. RCONHR1 A. RCONH2 C. RNH2 D. RCOR1 Correct Answer: Option C - RNH2 Explanation Amines possess a characteristic ammonia…
A. iron B. copper C. tin D. lead Correct Answer: Option A - iron
A. prevent goiter B. prevent tooth decay C. remove odour D. kill germs Correct Answer: Option C - remove odour…
A. cu2+ B. sn2+ C. fe2+ D. zn2+ Correct Answer: Option A - cu2+ Explanation The arrangement of elements in…
A. galena B. bauxite C. emerald D. nitrochalk Correct Answer: Option B - bauxite Explanation Bauxite ore can help you…
A. increase in freezing point and increase the boiling point B. increase in freezing point and decrease the boiling point…
A. C2H5OH B. C3H4 C. C6H6 D. CH3COOH Correct Answer: Option D = CH3COOH Explanation Carboxylic acids and enols react…
A. iron(ii)Sulphide B. tin(ii)sulphide C. Zinc Sulphide D. lead(iv) Sulphide Correct Answer: Option C - Zinc Sulphide Explanation ZnS (Zinc…
A. 18 B. 20 C. 37 D. 17 Correct Answer: Option B = 20 Explanation The mass number = number…