science class 7

the product of neutralisation are always

• acid and base

• acid and salt

• base and salt

• salt and water

which of the following set of substances contain acids?

• grapes, limewater

• curd, vinegar

• curd, milk of magnesia

• vinegar, soap

which of the following is an acid base indicator?

• vinegar

• lime water

• turmeric

• baking soda

distilled water is

• acidic

• basic

• neutral

• acidic abd basic both

ammonia turns red litmus blue, so it is

• acidic

• basic

• neutral

• acidic and basic both

an antacid tablet is given to a person when he suffers from

• obesity

• acidity

• dog bite

• basicity

ant's bite injects

• acetic acid

• formic acid

• hydrochloric acid

• tartaric acid

calcium hydroxide is found in

• window cleaner

• lime water

• soap

• lime juice

the substances that are used to test whether a substance is acidic or basic is called

• indicator

• acid

• base

• salt

phenolphtalein gives ____________ colour in acidic medium.

• pink

• colourless

• green

• red