Acid, bases, Monika Mehta Gssslohgarh, mohlai

Select the correct way of mixing of mixing acid and bases.

• Adding water to acid.

• Adding acid to water.

• Mix acid and water simultaneously.

• Adding water to acid in a shallow container

What are the products of a neutralization reaction

• an acid and a base.

• an acid and a salt.

• a salt and water.

• a salt and a base.

Turmeric is a natural indicator. On adding acid and base separately to its

paste, what would happen?

• Yellow in both acid and base.

• Yellow in acid and red in base.

• Pink in acid and yellow in base.

• Red in acid and blue in base.

Phenolphthalein is a synthetic

indicator and its colours in acidic and basic solution

• blue and red.

• red and blue.

• pink and colourless.

• colourless and pink

When the soil is too basic, plants do

not grow well in it. To improve its quality

what must be added to the soll?

• Organic matter

• Slaked lime

• Quick lime

• Calamine solution

'Litmus', a natural Indicator is an extract of which of the following?

• China rose (Gudhal)

• Beetroot

• Lichen

• Blue berries (Jamun)

Neutralisation reaction is a:

• physical and reversible change.

• chemical change that cannot be reversed.

• chemical and reversible change.

• chemical change that cannot be reversed.

solution changes the colour of turmeric from yellow to red. Then the

nature of solution will be:

• Acidic

• Basic

• Neutral

• Either acidic or neutral

Which of the following set of substances contain acids?

• Grapes, lime water

• Vinegar, milk of magnesia

• Curd, milk of magnesia

• Curd, vinegar