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The litmus solution turns in colour in strong basic solution.

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Important Questions on Acids, Bases and Salts

HARD
When HClaqis exactly neutralised by NaOHaq, the hydrogen ion concentration in the resulting mixture is 
EASY
Tooth decay starts when the pH of the mouth is?
EASY

Our body works within the pH range of?

EASY
Equal volumes of hydrochloric acid and sodium hydroxide solutions of same concentration are mixed and the pH of the resulting solution is checked with a pH paper. What would be the colour obtained?
EASY
The most commonly used indicator in laboratory is
EASY
The general reaction between a metal oxide and an acid can be written as?
MEDIUM
Study the given diagram carefully and identify X and Y, respectively.

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EASY
The litmus solution turns _____ in colour in strong acid solution.
EASY
Which of the following substance is antacid?
EASY

Dry HCl gas does not change the colour of dry litmus paper.

The above statement is:

EASY
Fresh milk has a pH of 6. On changing into curd, its pH becomes
MEDIUM
The number of moles of NaOH required to neutralize one mole of H2SO4 will be -
EASY
Which of the following is a neutralisation reaction?
EASY
The pH of the gastric juices released during digestion is
MEDIUM
A solution turns red litmus blue, its pH is likely to be?
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Which one of the following types of medicines is used for treating indigestion?

EASY
The litmus solution is derived from _____.
EASY
The colour of the neutral litmus solution is _____.
EASY
Which of the following is used in the case one is stung by a bee?
MEDIUM

When sulphur dioxide is bubbled through sodium hydroxide solution, then-