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प्रश्न
State whether the following statement is true or false. If false write the correct statement.
Solubility of most solids – decreases with increase in temperature
विकल्प
True
False.
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उत्तर
False.
Correct: Solubility of most solids – increase in temperature
संबंधित प्रश्न
Why is water called a universal solvent?
Define:
Solution
Define:
Unsaturated solutions
Complete the statement by filling in the blanks with the correct words.
If potassium nitrate is added to water in a beaker to give a homogeneous mixture, then potassium nitrate is referred to as the __________, water as the __________, and the homogeneous mixture as the _______.
(solution/ solute/solvent/saturated solution)
Draw a neat labelled diagram of the addition of copper sulphate to water. Label solute, solvent, and solution in the same.
From the following substances given below state which will form a solution in the same.
(a) sodium carbonate
(b) calcium carbonate
(c) charcoal powder
(d) sodium sulphate
(e) table salt
(f) powdered particles of lead from a lead pencil
(g) iron powder
(h) copper filings
(i) sand particles
(j) honey
If ‘X’ g. of potassium nitrate is added to 100 g. of water at 60°C and the salt dissolves completely then :
(a) is ‘X’ g. the solubility of potassium nitrate at 60°C.
(b) is the solution formed – saturated or unsaturated
(c) if on addition ‘X’ + ‘Y’ g. of potassium nitrate to the same amount of water at the same temperature and the solute now just remains behind after stirring then –
(d) is the solution now – saturated or unsaturated
(e) is ‘X’ + ‘Y’ g. the solubility of potassium nitrate.
Define the term – solvent
Polar compounds are soluble in _____ solvents
Solutions which contain three components are called a binary solution.
