A student takes sodium hydrogen carbonate powder in a test tube and pours 4-5 drops of acetic acid over it.

(a) When sulphur is heated in air, sulphur dioxide gas is formed. (i) Sulphur dioxide has no action on dry litmus paper. (ii) Sulphur dioxide turns blue litmus paper to red. (b) S(s)...

(A) a clear transparent colourless solution

(B) the ethanoic acid dissolves readily in water  

I, II and IV

The correct answer is (D) only Z

No reaction with distilled water. Chemical reaction occurs with solution of NaHCO3 Two Observations: (i) Evolution of a colourless, odourless gas. (ii) The gas is evolved with brisk effervescence

(i) Acetic acid will remain colourless in phenolphthalein. 22.  (ii) Acetic acid will dissolve in distilled water forming a clear solution.  (iii) Universal indicator gives orange colour with acetic acid.  (iv) Sodium hydrogencarbonate...

A colourless and odourless gas is evolved. It turns lime water milky and this gas extinguishes the burning splinter.

Acetic acid is colourless liquid. It is miscible/ soluble in water. On adding a pinch of sodium hydrogen carbonate, Brisk effervescence is observed. Evolution of a colourless/ odourless gas.

(i) Sodium carbonate :for softening of hard water ,laboratory reagent.  (ii) Sodium hydroxide: in the manufacture of soap, in the purification of bauxite.  (iii) Sodium hydrogen carbonate: as a mild antiseptic, as...