Chemistry Class-11: Chapter – 10. The S-Block Elements Part – 6 (For CBSE, ICSE, IAS, NET, NRA 2022)

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IV. Matching Type ~Chemistry Class - 11: Chapter – 10. The S-Block Elements Part – 6

IV. Matching Type

In the following questions more than one option of column I and II may be correlated.

Question: 41

Match the elements given in Column I with the properties mentioned in Column II

Elements and Their Properties
Column IColumn II
(i)(a)Insoluble sulphate
(ii)(b)Strongest monoacidic base
(iii)(c)Most negative value among alkali metals.
(iv)(d)Insoluble oxalate
(e) outer electronic configuration

Answer:

Question: 42

Match the compounds given in Column I with their uses mentioned in Column II.

Compounds and Their Properties
Column IColumn II
(i)(a)Dentistry, ornamental work
(ii)(b)Manufacture of sodium carbonate from caustic soda
(iii)(c)Manufacture of high quality paper
(iv)(d)Used in white washing

Answer:

Question: 43

Match the elements given in Column I with the colour they impart to the flame given in Column II.

Elements and Their Properties
Column IColumn II
(i)(a)Apple green
(ii)(b)Violet
(iii)(c)Brick red
(iv)(d)Yellow
(v)(e)Crimson red
(vi)(f)Blue

Answer:

V. Assertion and Reason Type

In the following questions a statement of Assertion (A) followed by a statement of Reason (R) is given. Choose the correct option out of the choices given below each question.

Question: 44

Assertion (A) : The carbonate of lithium decomposes easily on heating to form lithium oxide and .

Reason (R) : Lithium being very small in size polarizes large carbonate ion leading to the formation of more stable and .

(i) Both A and R are correct and R is the correct explanation of A.

(ii) Both A and R are correct but R is not the correct explanation of A.

(iii) Both A and R are not correct

(iv) A is not correct but R is correct.

Answer: (i)

Question: 45

Assertion (A) : Beryllium carbonate is kept in the atmosphere of carbon dioxide.

Reason (R) : Beryllium carbonate is unstable and decomposes to give beryllium oxide and carbon dioxide.

(i) Both A and R are correct and R is the correct explanation of A.

(ii) Both A and R are correct but R is not the correct explanation of A.

(iii) Both A and R are not correct.

(iv) A is not correct but R is correct.

Answer: (i)