11.6 Carboxylic Acid — Chemistry STD 10 — Question

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.

Give the equation for the preparation of the following salt from the starting material given.
Iron (III) Chloride from Iron

When a molten ionic compound is electrolysed, the metal is always formed at …………… and the non-metal is formed at …………..

Among the elements of the second period, Li to Ne, pick out the element that is the most reactive non-metal

Pick the odd member from the list and give reason:
Copper oxide, aluminium oxide, sodium oxide, magnesium oxide.

Write a balanced equation for the reaction of zinc and dilute hydrochloric acid.

A saturated hydrocarbon from iodomethene.

Write balanced equation for the reaction between iron and dilute sulphuric acid.

Name the following:
A compound which is added to lower the fusion temperature of the electrolytic bath in the extraction of aluminium.

The volume occupied by one mole of a gas at STP is.