S-block elements are:

Elements of group I-A and III-B.

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Elements of group I-A and II-A.

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Elements of group I-A and I-B.

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Elements of group I-A and II-B.

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Solution

The correct option is B Elements of group I-A and II-A.
S-block elements are elements of group I-A (alkali metals) and II-A (alkaline earth metals).

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Similar questions

(a) What are the following groups known as ?

(i) Group 1 (ii) Group 17 (iii) Group 18

(b) Name two elements of each group.

Match the following statements

$\begin{matrix} (a)f block elements & (i) G r o u p 1 a n d 2 (b)d block elements & (i i) G r o u p 13 t o 17 (c)p block elements & (i i i) G r o u p 3 t o 12 (d)s block elements & (i v) L a n t h a n i d e s a n d A c t i n i d e s \end{matrix}$

Q. The atomic numbers of three elements A, B and C are given below:

Element	Atomic number
A	5
B	7
C	10

(i) Which element belongs to group 18?
(ii) Which element belongs to group 15?
(iii) Which element belongs to group 13?
(iv) To which period/periods do these elements belong?

The atomic numbers of three elements A, B and C are given below :

Element Atomic number

A 5

B 7

C 10

(i) Which element belongs to group 18? (ii) Which element belongs to group 15?

(iii) Which element belongs to group 13? (iv) To which, period/periods do these elements belong?

Based on the group valency of elements state the formula for the following giving justification for each:
(i) Oxides of $1^{s t}$ group elements.
(ii) Halides of the elements of group 13, and
(iii) Compounds formed when an element of group 2 combines with, an element of group 16

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S-block elements are:

The correct option is B Elements of group I-A and II-A.S-block elements are elements of group I-A (alkali metals) and II-A (alkaline earth metals).

The correct option is B Elements of group I-A and II-A.
S-block elements are elements of group I-A (alkali metals) and II-A (alkaline earth metals).