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प्रश्न
Give two examples of the following:
hydracids
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उत्तर
Hydrochloric acid (HCl), Hydrobromic acid (HBr)
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संबंधित प्रश्न
Name an indicator which is pink in alkaline solution but turns colourless in acidic solution.
What effect does the concentration of H+ (aq) ions have on the nature of a solution?
Name an acid used to remove ink spots.
By squeezing lemon on a piece of rock the gas liberated turned lime water milky. which compound is present in the rock?
Give the name and formula of two : Non-volatile acids
If iron reacts with dilute sulphuric acid, what will be the products?
Choosing the correct words given in brackets, complete the sentence given below:
A(n) ______ (acid/basic) salt is one in which the hydrogen of an acid has been partially replaced by a ______ (metal/non-metal).
Fill in the cross word given in figure with the help of the clues provided.
Across
(2) The solution which does not change the colour of either red or blue litmus.
(4) Phenolphthalein gives pink colour in this type of solution.
(7) Colour of blue litmus in lemon juice.
Down
(1) It is used to test whether a substance is acidic or basic.
(3) It is a natural indicator and gives pink colour in basic solution.
(5) Nature of ant’s sting.
(6) It is responsible for the increase in temperature during a neutralisation reaction.
A metal 'M' on reacting with dilute acid liberates a gas 'G'. The same metal also liberates gas 'G' when reacts with a base.
- Write the name of gas 'G'.
- How will you test the presence of this gas?
- Write chemical equations for the reactions of the metal with (1) an acid and (2) a base.
Name the acid present in lemon.
