Acids, Bases and Salts

Chemical formula of hydrochloric acid is:

• HcL

• hCL

• hcl

• HCl

Lime water turns:

• Red litmus into blue

• Blue litmus into red

• No change in both the litmus paper

• None of these

Identify the neutral substance from the following

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Phenolphthalein is -------------in bases

• Colourless

• Green

• Pink

• Red

Complete the following reaction:

HCl + NaOH ------->

• CO2 + H2O

• NaCl + H2O

• O2 + H2O

• No Reaction

Which of the following will give magenta colour to the china rose indicator?

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Which of the following is not true?

• Bases are bitter in taste.

• Bases turn blue litmus to red.

• Bases turn red litmus blue.

• Bases turn turmeric indicator to red.

Milk of magnesia is used as an antacid because:

• It is acidic

• It is neutral

• it is basic

• All of the above

Window cleaner is:

• Calcium hydroxide

• Ammonium hydroxide

• Sodium hydroxide

• Magnesium hydroxide

The reaction between an acid and base is called

• Neutral solution

• Neutralization

• acid rain

• Crystallization