Calcium acetate on heating gives ___ which gives__ on heating with iodine and sodium hydroxide solution.

Propanal on treatment with dilute sodium hydroxide gives

Hydroxide of which metal is soluble in sodium hydroxide solution?

KMnO_4 on strong heating gives a gas which is

Chlorine on reaction with hot and concentrated sodium hydroxide gives:

Write the balanced chemical equation for the following reaction : Zinc is heated with sodium hydroxide solution.

Give balanced chemical equations for the following reactions : Fluorine treated with dilute sodium hydroxide solution

Which is the major product formed when acetone is heated with iodine and potassium hydroxide ?

A compound (X) with the molecular formula C_6 H_10 O_4 is a neutral liquid. On heating (X) , under reflux with aqueous sodium hydroxide and distilling the product. A colourless liquid is obtained which on warming with iodine and aqueous sodium hydroxide gives a pale yellow precipatate (Y) . The residue in the distilling flask is the sodium salt of an acid (Z) , which decolourises aqueous acidified potassium permaganate (VII) on heating. Identify (X), (Y) , and (Z) and give all the reactions involved.

Salts P, Q,R,S,T,U and V undergo reactions (i) to (vii) respectively. Identify the cation present in these salts on the basis of these reactions. Tabulate your answer in the formate given below. (i) When the salt Pis heated with sodium hydroxide solution a vigorous reaction takes place and a colourless gas is evolved with a pungent and suffocating smell that brings tears in our eyes. The evolved gas gives dense white fumes with a moist glass rod depped with hydrochloric acid. (ii) Addition of sodium hydroxide solution to a solution of salt Q gives a thick white precipitae which is soluble in excess of sodium hydroxide solution to form a clear solution. (iii) Addition of ammonium hydroxide solution to a solution of salt R gives a dark blue precipitate which is soluble is excess of ammonium hydroxide solution to form an intense deep blue solution. (iv) Addition of ammonium hydroxide solution to a solution of 5 gives a dirty green [bottle green] precipitate which is insoluble even in the excess of ammonium hydroxide solution. (v) Addition of ammonium hydroxide solution to a solution of T gives a reddish brown (rust precipitate] precipitate which is insoluble even in the excess of ammonium hydroxide solution. (vi) Addition of ammonium hydroxide solution to a solution of V gives a geletaneous white precipitate which is soluble in excess of ammonium hydroxide solution to form a clear solution. (vii) Addition of ammonium hydroxide solution to a solution of V gives no precipitate but it gives a chalky white precipitate with sodium hydroxide solution which is insoluble even in the excess of sodium hydroxide solution.

Which of the following disproportionate (s) in heating with sodium hydroxide?