A. -5 B. -1 C. +1 D. +5 Correct Answer: Option D D. +5 Explanation IO‾³ [oxidation number of 1]…
A. electroplating B. extraction of aluminium C. extraction of iron D. purification of copper Correct Answer: Option C C. extraction…
A. FeCI3 B. MgSO4.7H2O C. Na2SO4 D. KCI Correct Answer: Option A B. MgSO4.7H2O
A. ZnCl2(aq) B. Pb(NO3)2(aq) C. CuSO4(aq) D. FeSO4(aq) Correct Answer: Option A A. ZnCl2(aq)
A. 3-5 B. 7-8 C. 8-10³ D. 10-12 Correct Answer: Option C C. 8-10³
A. Conductivity measurement B. Measurement of pH C. Measurement of heat of neutralization D. Action on starch iodide paper Correct…
A. Dissolving NH4CI crystals in water B. Addition of concentrated H2SO4 C. Dissolving NaOH pellets in water D. Passing SO3…
A. formation B. hydration C. neutralization D. solution Correct Answer: Option C C. neutralization
A. 0.10mol dm‾³ B. 0.20mol dm‾³ C. 0.40mol dm‾³ D. 2.00mol dm‾³ Correct Answer: Option D D. 2.00mol dm‾³
A. 1.56 x 10²³ B. 1.56 x 10²² C. 3.6 x 10²³ D. 3.6 x 10²² Correct Answer: Option B…