A. Al and Mg B. Zn and Fe C. Zn and Pb D. Pb and H Correct Answer: Option A…
A. CH B. CH2 C. CH3 D. CnHn Correct Answer: Option B - CH2
A. HCl(g) B. NH3 C. Cl2 D. SO2 Correct Answer: Option B - NH3 The ammonia formed is dried using…
A. nitrogen B. aluminium C. copper D. sulphur Correct Answer: Option D - sulphur
A. decrease B. increase C. be zero D. remain constant Correct Answer: Option B - increase Explanation According to the…
A. 298K B. 546K C. 819K D. 1092K Correct Answer: Option D - 1092K
A. dissolution of salt in water B. rusting of iron C. melting of ice D. separating a mixture by distillation…
A. 14 B. 13 C. 12 D. 11 Correct Answer: Option D - 11
A. FeS B. CuS C. ZnS D. Na2S Correct Answer: Option B - CuS Explanation Sulphides like PbS (lead (II)…
A. ethene B. propane C. methane D. butane Correct Answer: Option A - ethene