A. hydrate iron (III) oxide B. anhydrous iron (III) oxide C. anhydrous iron (II) oxide D. hydrate iron (II) oxide…
A. lead B. silver C. copper D. tin Correct Answer: Option D - tin
A. HNO3 B. CH3COOH C. H2SO4 D. HCl Correct Answer: Option A - HNO3
To a solution of an unknown compound, a little dilute tetraoxosulphate (VI) acid was added with some freshly prepared iron…
2H2(g) + O2(g) → 2H2O(g) ΔH = -ve A. it is unaffected B. it becomes zero C. it decreases D.…
A. lowering the pressure of the reaction B. increasing the surface area of the reactant C. increase the rate of…
A. the reaction is static B. the reaction is in a state of equilibrium C. there will be a large…
A. Thermal dissociation of ammonium chloride B. Reaction between an acid and a base C. Addition of concentrated acid to…
A. 0.2 g B. 1.8 g C. 5.4 g D. 14.2 g Correct Answer: Option B - 1.8 g
A. gold B. silver C. copper D. zinc Correct Answer: Option D - zinc