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10th CBSE

IMPORTANT

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A chemistry lab-incharge kept zinc metal in ${F e S O}_{4}$ solution and observed that after sometime, green ferrous sulphate solution turns to colourless and some brown powder is deposited on zinc. In the above reaction, zinc metal acts as:

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Important Questions on Metals and Non-Metals

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10th CBSE

IMPORTANT

ESSENTIALS OF CHEMISTRY X>Chapter 3 - Metals and Non-Metals>Value Based Questions>Q 65

Raman took three metals labelled

P, Q

and

R

. He carried out displacement reactions with his salt solutions and found that

P

is less reactive than

R

but more reactive than

Q

. The metals

P, Q

and

R

respectively could be:

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10th CBSE

IMPORTANT

ESSENTIALS OF CHEMISTRY X>Chapter 3 - Metals and Non-Metals>Value Based Questions>Q 66

Rashmi added aluminum metal to colourless solution of zinc sulphate. After half an hour, the solution was observed. It was colourless.
She recorded her observations in the following statements:
(i) No reaction occurred
(ii) Reaction occurred and aluminium sulphate was formed
(iii) Zinc is more reactive than aluminium
(iv) Aluminium is more reactive than zinc.
The correct observations are:

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10th CBSE

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ESSENTIALS OF CHEMISTRY X>Chapter 3 - Metals and Non-Metals>Value Based Questions>Q 67

Which of the following reactions will not proceed?

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10th CBSE

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ESSENTIALS OF CHEMISTRY X>Chapter 3 - Metals and Non-Metals>Value Based Questions>Q 68

Ferrous sulphate crystals are dissolved in water. The colour of the solution would be

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10th CBSE

IMPORTANT

ESSENTIALS OF CHEMISTRY X>Chapter 3 - Metals and Non-Metals>Value Based Questions>Q 69

Mrignayani was doing the experiment of comparing the reactivity of metals in the laboratory. She was given aluminium metal and was told to check reactivity to by using four solutions as shown below. She would observe that reaction takes place in
Question Image

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10th CBSE

IMPORTANT

ESSENTIALS OF CHEMISTRY X>Chapter 3 - Metals and Non-Metals>Value Based Questions>Q 70

Which of the following statements are correct: Aluminium can displace
(i)

C u

from

{C u S O}_{4}

solution
(ii)

F e

from

{F e S O}_{4}

solution
(iii)

Z n

from

{Z n S O}_{4}

solution
(iv)

A l

from

{A l}_{2} {({S O}_{4})}_{3}

solution

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10th CBSE

IMPORTANT

ESSENTIALS OF CHEMISTRY X>Chapter 3 - Metals and Non-Metals>Value Based Questions>Q 71

Four test tubes marked

I, I I, I I I

and

I V

were taken.

20 mL

{A l}_{2} {({S O}_{4})}_{3}

solution in water was poured in each of the test tubes. A piece of zinc metal was placed in test tube

I

, an iron nail was put in test tube

I I

, copper turnings were put in test tube

I I I

and a clean aluminium strip was placed in test tube

I V

. No change was observed in any of the test tubes. The correct inference drawn is:

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10th CBSE

IMPORTANT

ESSENTIALS OF CHEMISTRY X>Chapter 3 - Metals and Non-Metals>Value Based Questions>Q 72

If iron nails are added in zinc sulphate solution, the possible observation could be:

A chemistry lab-incharge kept zinc metal in FeSO4 solution and observed that after sometime, green ferrous sulphate solution turns to colourless and some brown powder is deposited on zinc. In the above reaction, zinc metal acts as:

Important Questions on Metals and Non-Metals

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A chemistry lab-incharge kept zinc metal in ${F e S O}_{4}$ solution and observed that after sometime, green ferrous sulphate solution turns to colourless and some brown powder is deposited on zinc. In the above reaction, zinc metal acts as: