Acids, bases and salts

Acidic substances taste -

• sour

• salty

• sweet

• bitter

Litmus is an -

• acid

• base

• indicator

• neutral substance

The reaction between acid and base is termed as

• exothermic reaction

• endothermic reaction

• acidic

• neutralisation

"Litmus" a natural dye is an extract of ----------------.

(a)  

A solution changes the colour of turmeric indicator from yellow to red. The solution is-

• Basic

• acidic

• neutral

• either neutral or acidic

Phenolphthalein gives -------------- colour with lime water.

(a)  

Acid found in curd is-

• Formic acid

• tartaric acid

• acetic acid

• lactic acid

End products of neutralisation reaction are always-

• an acid and a base

• an acid and a salt

• a salt and water

• a salt and a base

Turmeric and litmus are --------- acid-base indicator.

(a)  

Distilled water is --- in nature.

• neutral

• acidic

• basic

• salty