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प्रश्न
Give the name and formula of two : Non-volatile acids
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उत्तर
(i) Sulphuric acid H2SO4
(ii) Hydrogen chloride HCl
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संबंधित प्रश्न
Three solutions P, Q and R have pH value of 3.5, 5.2 and 12.2 respectively. Which one of these is a:
- Weak acid?
- Strong alkali?
Name an indicator which is pink in alkaline solution but turns colourless in acidic solution.
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Do basic solutions also have H+(aq)? Why are they basic?
Give the reaction of acid with nitrates. State the conditions under which they react.
Name the positive ion formed When an acid is dissolved in water.
Acids are corrosive in nature.
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.
You are supplied with five solutions: A, B, C, D and E with pH values as follows: A = 1.8, B = 7, C = 8.5, D = 13, and E = 5
Classify these solutions as neutral, slightly or strongly acidic and slightly or strongly alkaline.
Which solution would be most likely to liberate hydrogen with powdered zinc metal. Give a word equation for each reaction.
