What ions are present in the solutions of following substances? (write the symbols only)(i) Hydrochloric acid (ii) Nitric acid(iii) Sulphuric acid (iv) Sodium hydroxide(v) Potassium hydroxide (vi) Magnesium hydroxide
(i) Hydrochloric acid = H+ , Cl–
(ii) Nitric acid = H+ , NO3 2-
(iii) Sulphuric acid = H+ , SO4 2-
(iv) Sodium hydroxide = Na+ , OH–
(v) Potassium hydroxide = K+ , OH–
(vi) Magnesium hydroxide = Mg2+ , OH–
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A _________ is a substance that gives hydroxide ions in the presence of water.A. Base B. Salt C. Acid D. Hydroxide
What happens when (Write the balanced equation involved) –(i) Copper is heated in air?(ii) Aluminium oxide is reacted with hydrochloric acid?(iii) Potassium reacts with water?(iv) Cinnabar is heated in air?(v) Aluminium oxide reacts with sodium hydroxide?
Name the gas produced when aluminium foil reacts with:(a) dilute hydrochloric acid.(b) Sodium Hydroxide solution.
Name the gas evolved when zinc granules are treated/heated with:(a) Hydrochloric acid solution(b) Sodium hydroxide solution
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An acid which can decolourise purple coloured potassium permanganate solution is:(a) sulphuric acid (b) citric acid (c) carbonic acid (d) hydrochloric acid
Explain the action of dil HCl on the following with chemical equations:(i) Magnesium ribbon(ii) Sodium Hydroxide(iii) Crushed egg shells
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