Acid, Bases And Salts

Substances that are bitter in taste and feel soapy are called -

• Acids

• Bases

• Litmus

• None of The above

What happens when a litmus is added to an acid solution?

• It turns blue

• It turns green

• It turns red

• It turns yellow

Select the correct charectaristics of acids.

• They taste sour

• They irritate the skin

• They corrode metals

• They come from sweat

----- is used to find out whether a substance is acidic or basic

(a)  

What is the remedy for ant bite? (formic acid)

• sodium hydrogen carbonate

• calcuim hydroxide

• turmeric

• soap solution

What color does phenolphthalein give when the solution is basic?

• Red

• Blue

• Yellow

• Colorless

What substance is soil in which plants grow treated with when there is too much acid?

• Calcium oxide

• Calcium hydroxide

• Lactic acid

• Tartaric acid

Where is ammonium hydroxide found in?

• Toilet cleaner

• Window cleaner

• Detergent

• Baking soda

If you face indigestion, what should you do?

• Nothing

• Eat food

• Use antacid like milk of magnesia

• Take substances with citric acid

How can factory wastes be neutralized?

• By adding more waste

• By doing nothing

• By adding acids

• By adding basics