Normality
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Q. Find the normality of a solution prepared by dissolving 0.321 g of sodium carbonate (Na2CO3) in 250 mL of water.
- 0.53 N
- 0.018 N
- 0.075 N
- 0.024 N
Q.
5 ml of N HCl, 20 ml of N/2 H2SO4 and 30 ml of N/3 HNO3 are mixed together and volume made to one litre. The normality of the resulting solution is
- N20
- N40
- N5
- N10
Q. What is the molarity of a 4% W/V NaOH solution ?
- 0.1 M
- 0.01 M
- 1 M
- 10 M
Q. 10 mL of a N2 HCl solution, 30 mL of a N10HNO3 solution and 75 mL of a N5HNO3
solution are mixed. The normality of H+ ions in the resultant solution will be:
solution are mixed. The normality of H+ ions in the resultant solution will be:
- 0.1 N
- 0.4 N
- 0.2 N
- 0.5 N
Q. Find the molarity and the normality of a 15% solution by mass of H2SO4.
(density of H2SO4=1.10 g/mL)
(density of H2SO4=1.10 g/mL)
- 1.68 M, 3.36 N
- 3.36 M, 1.68 N
- 0.84 M, 1.68 N
- 1.68 M, 0.84 N
Q. 20 mL of a 10 N HCl solution is mixed with 10 mL of a 36 N H2SO4 solution and this solution is further diluted with water to 1 L. The normality of H+ ions in the resultant solution will be:
- 0.56 N
- 0.40 N
- 0.35 N
- 0.50 N
Q. Calculate the normality of a solution containing 15.8 g of KMnO4 in 50 mL of acidic solution.
- 1 N
- 10 N
- 100 N
- 0.5 N
Q. Molarity of a solution that has 3.42 g sucrose in 500 mL solution is .
- 0.2
- 0.02
- 2
- 0.342
Q. What volume of 0.1 M KMnO4 is needed to oxidize 100 mg of FeC2O4 in acid solution?
- 4.1 mL
- 8.2 mL
- 10.2 mL
- 4.6 mL
Q. To 50 L of 0.2 N NaOH, 2.5 L of 2 N HCl and 15 L of 0.1 N FeCl3 solutions are added. What weight of Fe2O3 can be obtained from the precipitate? Also report the normality of NaOH left in the resultant solution.
- 40 g , 0.05 N
- 20 g , 0.1 N
- 40 g , 0.1 N
- 20 g , 0.05 N
Q. 200 mL of a 4 % (w/v) NaOH solution is diluted up to 500 mL. Find the resultant molarity of the solution.
- 0.4 M
- 0.5 M
- 0.8 M
- 0.3 M
Q.
Hydrochloric acid solutions A and B have concentration of 0.5 N and 0.1 N respectively. The volume of solutions A and B required to make 2 litres of 0.2 N hydrochloric are
- 0.5 l of A + 1.5 l of B
1.5 l of A + 0.5 l of B
- 1.0 l of A + 1.0 l of B
0.75 l of A + 1.25 l of B
Q. The normality of 1.11 g of CaCl2 dissolved in 250 mL solution is .
- 0.1 N
- 0.25 N
- 0.08 N
- 0.3 N
Q. Calculate the weight of CaCO3 required to produce a 0.5 N of 100 mL solution.
- 2.5 g
- 5 g
- 7.5 g
- 10 g
Q. 100 mL of a 1 M H2SO4 solution is mixed with 200 mL of a 0.5 M HCl solution and diluted to a final volume of 500 mL. 200 mL of this solution is further diluted with 300 ml of water. Find the normality of H+ ions in the final solution.
- 0.51 N
- 0.32 N
- 0.24 N
- 0.16 N
Q. How many millilitres of 0.02 M KMnO4 solution would be required to exactly titrate 25.0 mL of 0.2 M Fe(NO3)2 solution?
- 50.00 mL
- 70.00 mL
- 80.00 mL
- None of these
Q. Volume of 0.1 M NaOH required to completely neutralise 40 cm3 of 0.1 M oxalic acid is
- 40 cc
- 80 cc
- 120 cc
- 20 cc
Q. Which of the following is correct about potassium permanganate?
- All of the above
- Strong oxidising agent.
- Deeply coloured self redox indicator.
- Colour disappears when titrated against a reducing agent.
Q. 100 cm3 of a 0.1 N HCl solution is mixed with 100 cm3 of a 0.2 N NaOH solution. The resulting solution has:
- Normality of OH−=0.1 N and the solution is basic
- Normality of H+=0.1 N and the solution is acidic
- Normality of OH−=0.05 N and the solution is basic
- Normality of H+=0.05 N and the solution is acidic
Q. Calculate the normality of OH− ions in a solution obtained by mixing 0.01 L of a N10 NaOH solution and 40 mL of a semi normal KOH solution.
- 0.42 N
- 0.35 N
- 0.10 N
- 0.20 N
Q. Calculate the volume of 0.2 N NaOH required for neutralising the solution obtained by mixing 20 mL of 0.1 N H2SO4 and 20 mL of 0.1 N HCl.
- 10 mL
- 20 mL
- 30 mL
- 40 mL
Q. A solution of 36.5% HCl by mass has a density of 1.20 g mL−1. The molarity and normality of the solution respectively are:
- 12 M, 12 N
- b. 6 M, 6 N
- 6 M, 12 N
- 12 M, 6 N
Q. Which one of the following indicators give yellow colour in basic medium ?
- Phenolphthalein
- Methyl orange
- Bromothymol blue
- (a) and (b) above.
Q.
The normality of 0.1MB(OH)3 is
- 0.1
- 0.9
- 0.3
- 0.6
Q. The number of gram equivalents in 250 mL of 0.25 N KOH solution is :
- 1
- 0.0625
- 0.625
- 0.1
Q. Which one of the following indicators give colorless solution in acidic solution ?
- Bromothymol blue
- Phenolphthalein
- Methyl orange
- Methyl red
Q. 50 ml of 2M NaOH solution and 10 ml of 2N H2SO4 solutions are mixed together, the resulting solution will be:
- Acidic
- Alkaline
- Neutral
- Strongly Acidic
Q. What is the volume of a 2 M HCl solution if it contains 365 g of HCl?
- 3 L
- 5 L
- 4 L
- 7 L
Q. Calculate the normality of a solution containing 50 mL of 5 M solution K2Cr2O7 in acidic medium.
- 15 N
- 30 N
- 10 N
- None of the above
Q. How many grams of NaOH is required to prepare 1500 mL of a 0.1 N NaOH solution?
- 10 g
- 6 g
- 8 g
- 15 g