Match List - I with List - II. List-I (Salt) List-II (Flame colour wavelength) (a) LiCl (i) 455 . 5 nm (b) NaCl (ii) 670 . 8 nm (c) RbCl (iii) 780 . 0 nm (d) CsCl (iv) 589 . 2 nm Choose the correct answer from the options given below:

(a)-(ii), (b)-(iv), (c)-(iii), (d)-(i)

(a)-(iv), (b)-(ii), (c)-(iii), (d)-(i)

(a)-(i), (b)-(iv), (c)-(ii), (d)-(iii)

(a)-(ii), (b)-(i), (c)-(iv), (d)-(iii)

Match List-I with List-II List - I (Elements) List - II (Properties) (a) Ba ( i ) Organic solvent soluble compounds (b) Ca ( ii ) Outer electronic configuration 6 s 2 (c) Li ( iii ) Oxalate insoluble in water (d) Na ( iv ) Formation of very strong monoacidic base Choose the correct answer from the options given below:

(a)-(ii), (b)-(iii), (c)-(i) and (d)-(iv)

(a)-(iv), (b)-(i), (c)-(ii) and (d)-(iii)

(a)-(iii), (b)-(ii), (c)-(iv) and (d)-(i)

(a)-(i), (b)-(iv), (c)-(ii) and (d)-(iii)

Given below are two statements : one is labelled as Assertion (A) and the other is labelled as Reason (R). Assertion (A): Gypsum is used for making fireproof wall boards. Reason (R): Gypsum is unstable at high temperatures. In the light of the above statements, choose the correct answer from the options given below:

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

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

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

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

Match List I with List II (A) Slaked lime (I) NaOH (B) Dead burnt plaster (II) Ca ( OH ) 2 (C) Caustic soda (III) Na 2 CO 3 · 10 H 2 O (D) Washing soda (IV) CaSO 4 Choose the correct answer form the options given below:

(A) - II, (B) - IV, (C) - I, (D) - III

(A) - I, (B) - IV, (C) - II, (D) - III

(A) - III, (B) - IV, (C) - II, (D) - I

(A) - III, (B) - II, (C) -IV, (D) -I

Which of the following reaction is correct?

4 LiNO 3 ⟶ Δ 2 Li 2 O + 4 NO 2 + O 2

4 LiNO 3 ⟶ Δ 2 Li 2 O + 2 N 2 O 4 + O 2

2 LiNO 3 ⟶ Δ 2 Li + 2 NO 2 + O 2

MEDIUM

JEE Main

IMPORTANT

Earn 100

Given below are two statements:

Statement I : None of the alkaline earth metal hydroxides dissolve in alkali.

Srtatement II : Solubility of alkaline earth metal hydroxides in water increases down the group.

In the light of the above statements, choose the most appropriate answer from the options given below:

50% studentsanswered this correctly

Important Questions on The s-Block Elements

MEDIUM

JEE Main

IMPORTANT

EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR CHEMISTRY>Chapter 15 - The s-Block Elements>JEE Main - 25 Feb 2021 Shift 2>Q 38

Among the following, number of metal/s which can be used as electrodes in the photoelectric cell is ___ . (Integer answer)
(A)

Li

(B)

Na

(C)

Rb

(D)

Cs

MEDIUM

JEE Main

IMPORTANT

EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR CHEMISTRY>Chapter 15 - The s-Block Elements>JEE Main - 24 Feb 2021 Shift 2>Q 39

Match List - I with List - II.

List-I (Salt)		List-II (Flame colour wavelength)
(a)	$LiCl$	(i)	$455.5 nm$
(b)	$NaCl$	(ii)	$670.8 nm$
(c)	$RbCl$	(iii)	$780.0 nm$
(d)	$CsCl$	(iv)	$589.2 nm$

Choose the correct answer from the options given below:

MEDIUM

JEE Main

IMPORTANT

EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR CHEMISTRY>Chapter 15 - The s-Block Elements>JEE Main - 24 Feb 2021 Shift 1>Q 40

Number of amphoteric compounds among the following is

(A) $BeO$

(B) $BaO$

(D) $Sr {(OH)}_{2}$

MEDIUM

JEE Main

IMPORTANT

EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR CHEMISTRY>Chapter 15 - The s-Block Elements>JEE Main - 22 July 2021 Shift 1>Q 41

Match List-I with List-II

	List - I (Elements)		List - II (Properties)
(a)	$Ba$	$(i)$	Organic solvent soluble compounds
(b)	$Ca$	$(ii)$	Outer electronic configuration $6 s^{2}$
(c)	$Li$	$(iii)$	Oxalate insoluble in water
(d)	$Na$	$(iv)$	Formation of very strong monoacidic base

Choose the correct answer from the options given below:

MEDIUM

JEE Main

IMPORTANT

EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR CHEMISTRY>Chapter 15 - The s-Block Elements>JEE Main - 20 July 2021 Shift 1>Q 42

A s-block element (M) reacts with oxygen to form an oxide of the formula

{MO}_{2}

. The oxide is pale yellow in colour and paramagnetic. The element

(M)

is:

EASY

JEE Main

IMPORTANT

EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR CHEMISTRY>Chapter 15 - The s-Block Elements>JEE Main - 2 September 2020 Shift 2>Q 43

Two elements

A

and

B

have similar chemical properties. They don't form solid hydrogencarbonates, but react with nitrogen to form nitrides.

A

and

B

, respectively, are :

EASY

JEE Main

IMPORTANT

EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR CHEMISTRY>Chapter 15 - The s-Block Elements>JEE Main - 2 September 2020 Shift 1>Q 44

The metal mainly used in devising photoelectric cells is :

MEDIUM

JEE Main

IMPORTANT

EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR CHEMISTRY>Chapter 15 - The s-Block Elements>JEE Main - 12th January 2019 Shift 2>Q 45

The correct statement(s) among

I

III

with respect to potassium ions that are abundant within the cell fluids, is/are

I .

They activate many enzymes.

II .

They participate in the oxidation of glucose to produce

ATP

III .

Along with sodium ions, they are responsible for the transmission of nerve signals.

Important Questions on The s-Block Elements

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