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प्रश्न
Name the following:
A metallic oxide which reacts with hydrochloric acid to give a coloured solution.
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उत्तर
K2Cr2O7 reacts with hydrochloric acid to give a coloured solution.
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संबंधित प्रश्न
Write balanced chemical equations to show The behavior of H2SO4 as an acid when it reacts with Magnesium
State your observation when dilute hydrochloric acid is added to a lead nitrate solution and the mixture is heated.
Write a balanced equation for the action of dilute hydrochloric acid on sodium sulphide.
Fill in the blank:
On addition of silver nitrate to hydrochloric acid ___________ precipitate is formed which is soluble in ____________
Write balanced equcation for the following reaction:
Manganese (IV) oxide and concentrated hydrochloric acid.
Select from the list given (a to e) one substances in each case which matches the description given in parts (i) to (v). (Note : Each substance is used only one in the answer)
(a) Nitroso Iron (II) Sulphate
(b) Iron (III) chloride
(c) Chromium sulphate
(d) Lead (II) chloride
(e) Sodium chloride
(i) A compound which is deliquescent
(ii) A compound which is insoluble in cold water, but soluble in hot water
(iii) The compound responsible for the brown ring during the brown ring test of nitrate iron
(iv) A compound whose aqueous solution is neutral in nature
(v) The compound which is responsible for the green colouration when sulphur dioxide is passed through acidified potassium dichromate solution
State which of the two - a solution of HCl in water or in toluene is an electrolyte. Explain.
Write an equation for the reactions of hydrochloric acid on manganese (IV) oxide.
State which of the two - a solution of HCl in water or in toluene is an electrolyte. Explain.
Study the flow chart and give balanced equations with conditions for the conversions A, B, C, D, and E.
