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Acids, Bases and Salts Science - Acids, Bases and Salts

Maharashtra Board - STD 10 - Science (MSBSHSE - Semi English Medium). 301 questions in this chapter.

Question types

Acids, Bases and Salts question types

301 questions across 6 question groups — pick any mix to generate a Science paper with step-by-step answer keys.

301
Questions
6
Question groups
5
Question types
Sample Questions

Acids, Bases and Salts questions

One sample from each question group in this chapter. Select any group above to see the full set with answer keys.

Q 1M.C.Q1 Mark
The property which is not shown by acids is:
  • A
    They have sour taste.
  • ✓
    They feel soapy.
  • C
    They turn litmus red.
  • D
    Their $pH$ is less than seven.

Answer: B.

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Q 2M.C.Q1 Mark
The colour of methyl orange indicator in a solution is yellow. The $pH$ of this solution is likely to be:
  • A
    $7$
  • B
    Less than $7$
  • C
    $0$
  • ✓
    More than $7$

Answer: D.

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Q 3M.C.Q1 Mark
The products of chlor$-$alkali process are:
  • A
    $\ce{NaCl, Cl_2}$ and $\ce{H_2}$
  • ✓
    $\ce{H_2, Cl_2}$ and $\ce{NaOH}$
  • C
    $\ce{Cl_2, Na_2CO_3}$ and $\ce{H_2O}$
  • D
    $\ce{NaOH, Cl_2}$ and $\ce{HCl}$

Answer: B.

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Q 4M.C.Q1 Mark
A solution reacts with marble chips to produce a gas which turns lime water milky. The solution contains:
  • A
    $Na_2SO_4$
  • B
    $CaSO_4$
  • C
    $H_2SO_4$
  • ✓
    $K_2SO_4$

Answer: D.

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Q 5M.C.Q1 Mark
The salt which will give a neutral solution on dissolving in water will be:
  • A
    $CH_3COONa$
  • B
    $NH_4Cl$
  • ✓
    $KCl$
  • D
    $Na_2CO_3$

Answer: C.

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Q 17Answer the following questions: [3 M]3 Marks
A white shirt has a yellow stain of curry. When soap is rubbed on this shirt during washing, the yellow stain turns reddish-brown. On rinsing the shirt with plenty of water, the reddish-brown stain turns yellow again.
  1. Name the natural indicator present in curry stain.
  2. Explain the changes in colour of this indicator which take place during washing and rinsing the shirt.
  3. What is the nature of soap (acidic/ basic) as shown by the indicator present in curry stain?
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Q 18Answer the following questions: [3 M]3 Marks
Here are some results of solutions tested with universal indicator paper:
  1. Sulphuric acid: Red
  2. Metal polish: Dark blue
  3. Washing-up liquid:
  4. Yellow Milk of magnesia:
  5. Light blue Oven cleaner:
  6. Purple Car battery acid: Pink
Arrange the solutions in order of their increasing pH values (starting with the one with the lowest pH).
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Q 21Answer the following questions: [5 M]5 Marks
Solution A turns universal indicator blue to purple whereas solution B turns universal indicator orange to red.
  1. What will be the action of solution A on litmus?
  2. What will be action of solution B on litmus?
  3. Name any two substances which can give solutions like A.
  4. Name any two substances which can give solutions like B.
  5. What sort of reaction takes place when solution A reacts with solution B?
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