If a few drops of a concentrated acid accidentally spills over thehand of a student, what should be done?(a) Wash the hand with saline solution(b) Wash the hand immediately with plenty of water and apply apaste of sodium hydrogencarbonate(c) After washing with plenty of water apply solution of sodiumhydroxide on the hand(d) Neutralise the acid with a strong alkali

The first aid for an acid splash in the laboratory isA. use the first aid boxB. quickly get to the clinicC. flush that part of the skin with a lot of waterD. all of the above

Dilute hydrochloric acid will dissociate into ________ .

Which of the following is NOT a good practice for dealing with acids and bases?a.wiping out basic substance that spilled on the floorb.adding acid onto a beaker of waterc.throwing used acids on the grassesd.checking every label of acidic and basic containers

If you spill acetanilide accidentally, you should notify a demonstrator. The demonstrator would probably recommend to...?Group of answer choicesDissolve the acetanilide in water and wash the solution down the drain with running water.Spread anhydrous sodium bicarbonate over the spill, dissolve the mixture in water and wash the solution down the drain with running water.Sweep up the acetanilide carefully avoiding raising dust and place it in the chemical residue container provided.Neutralise the acetanilide with acid and wash the solution down the drain with running water.

A student preparing for the experiments inadvertently adds an additional 400 mL of the same acid solution to the dissolution vessel. What will be the new pOH of this solution?