Aqueous solutions of which of the following salts will change the colour of blue litmus to red?
Which of the following salts reacts with alkali?
Arrange the following compounds in increasing order of pH values.
i) Human blood
ii) 1 M HCl
iii) 1 M NaOH
iv) Lemon juice
v) Soft drinks
pH values of two solutions X and Y are 1 and 2 respectively. Which of the following statement is correct?
Conductivity of an electrolyte depends on the number of ions per unit volume of the electrolyte. Which of the following electrolyte exhibits maximum conductivity?
A metal carbonate (X) on thermal decomposition produces a solid residue and a gas (Y). When (Y) is passed through aqueons solution of another substance (Z) gives
back X. The compounds X, Y and Z respectively are
A gas (A) obtained at anode during the electrolysis of brine when passed through a substance (B) produces a compound (C) which is used for disinfecting drinking
water. A, B and C respectively are
Match the following:
pH of a solution is 12. Identify the wrong statement about this solution.
pOH values of four solutions A, B, C and D are 2, 8,13, 4 respectively. Arrange them in decreasing order of acidity.
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