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प्रश्न
Solution A is strong acid B weak acid C strong alkali.
Which solution contains solute molecules in addition to water molecules?
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उत्तर
Solution B - weak acid.
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संबंधित प्रश्न
The indicator which produces a pink colour in an alkaline solution is:
(a) methyl orange
(b) turmeric paper
(c) phenolphthalein
(d) litmus paper
When a piece of limestone reacts with dilute HCl, a gas X is produced. When gas X is passed through lime water then a white precipitate Y is formed. On passing excess of gas X, the white precipitate dissolves forming a soluble compound Z.
- What are X, Y and Z?
- Write equations for the reactions which take place:
- When limestone reacts with dilute HCl.
- When gas X reacts with lime water to form white precipitate Y.
- When excess of gas X dissolves white precipitate Y to form a soluble compound Z.
Write the neutralisation reaction between acids and bases in terms of the ions involved.
What happens when bases react with non-metal oxides? Explain with the help of an example. What does this reaction tell us about the nature of non-metal oxides?
The acid produced naturally in our stomach is:
(a) acetic acid
(b) citric acid
(c) hydrochloric acid
(d) sulphuric acid
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 magnesium powder. Give a word equation for each reaction.
Give the appropriate term defined by the statements given below :
The substance that releases hydronium ion as the only positive ion when dissolved in water.
The preparation of Lead sulphate from Lead carbonate is a two-step process. (Lead sulphate cannot be prepared by adding dilute Sulphuric acid to Lead carbonate.)
Write the equation for the reaction that will take place when this first step is carried out.
Which of the following set of substances contain acids?
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.
