NEET PYQs for Group 1 Elements with Solutions: Practice NEET Previous Year Questions

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Group 1 Elements is an important topic in the Chemistry section in NEET exam. Practising this topic will increase your score overall and make your conceptual grip on NEET exam stronger.

This article gives you a full set of NEET PYQs for Group 1 Elements with explanations for effective preparation. Practice of NEET Chemistry PYQs including Group 1 Elements questions regularly will improve accuracy, speed, and confidence in the NEET 2026 exam.

NEET PYQs for Group 1 Elements with Solutions

1.
HCl was passed through a solution of $CaCl_2$,$MgCl_2$ and $NaCl$. Which of the following compound(s) crystallise(s)?
- Both $MgCl_2$ and $CaCl_2$
- Only $NaCl$
- Only $MgCl_2$
- $NaCl$, $MgCl_2$ and $CaCl_2$
View Solution
2.
$20.0 \,g$ of a magnesium carbonate sample decomposes on heating to give carbon dioxide and $8.0 \,g$ magnesium oxide. What will be the percentage purity of magnesium carbonate in the sample ?
- 60
- 84
- 75
- 96
View Solution
3.
Which of the following oxides is most acidic in nature ?
- BeO
- MgO
- CaO
- BaO
View Solution
4.
Among the following alkaline earth metal halides, one which is covalent and soluble in organic solvents is
- Beryllium chloride
- Calcium chloride
- Strontium chloride
- Magnesium chloride
View Solution
5.
Equimolar solutions of the following were prepared in water separately. Which one of the solutions will record the highest pH ?
- $ SrCl_2$
- $BACl_2$
- $MgCl_2$
- $CaCl_2$
View Solution
6.
Magnesium reacts with an element $(X)$ to form an ionic compound. If the ground state electronic configuration of $( X )$ is $1 s ^{2} 2 s ^{2} 2 p ^{3}$, the simplest formula for this compound is
- $Mg_3X_2 $
- $Mg_2X_3 $
- $Mg_2X $
- $MgX_2 $
View Solution
7.
Which of the following is an amphoteric hydroxide ?
- $Mg(OH)_2$
- $Be(OH)_2$
- $Sr(OH)_2$
- $Ca(OH)_2$
View Solution
8.
On heating which of the following releases ${CO_2}$ most easily ?
- ${MgCO3 }$
- ${CaCO3 }$
- ${K2CO3 }$
- ${Na2CO3 }$
View Solution
9.
The compound A on heating gives a colourless gas and a residue that is dissolved in water to obtain B. Excess of ${CO_2}$ is bubbled through aqueous solution of B, C is formed which is recovered in the solid form. Solid C on gentle heating gives back A. The compound A is -
- ${Na_2 CO_3}$
- ${K_2 CO_3}$
- ${CaSO4.2H2O}$
- ${CaCO_3}$
View Solution
10.
Match List-I with List-II.
List - I List - II
(a) Li (i) Absorbent for carbon dioxide
(b) Na (ii) Electrochemical cells
(c) KOH (iii) Coolant in fast breeder reactors
(d) Cs (iv) Photoelectric cell
Choose the correct answer from the options given below:
- (a)-(iv), (b)-(i), (c)-(iii), (d)-(ii)
- (a)-(iii), (b)-(iv), (c)-(ii), (d)-(i)
- (a)-(i), (b)-(iii), (c)-(iv), (d)-(ii)
- (a)-(ii), (b)-(iii), (c)-(i), (d)-(iv)
View Solution
11.
Ionic mobility of which of the following alkali metal ions is lowest when aqueous solution of their salts are put under an electric field ?
- K
- Rb
- Li
- Na
View Solution
12.
Given below are two statements: one is labelled as Assertion A and the other is labelled as Reason R:
Assertion A: Metallic sodium dissolved in liquid ammonia giving a deep blue solution which is paramagnetic.
Reasons R: The deep blue solution to the formation of amide.
In the light of the above statements, the correct answer from the options below:
- Both A and R are true but R is the correct explanation of A.
- A is true but R is false.
- A is false but R is true.
- Both A and R are true and R is the correct explanation of A.
View Solution
13.
Which of the following statements is not correct?
- Be and Mg give characteristic colour to the flame.
- Be and Mg have high ionisation energy
- Sulphates of Be and Mg are readily soluble in water.
- All are correct
View Solution
14.
Enzymes that utilize ATP in phosphate transfer require an alkaline earth metal (M) as the cofactor. M is:
- Ca
- Sr
- Be
- Mg
View Solution
15.
Which one of the following is present as an active ingredient in bleaching powder for bleaching action?
- $Ca (OCl_2)$
- $Ca O_2 Cl_2$
- $ CaCl_2$
- $ CaCl_2$
View Solution

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	List - I		List - II
(a)	Li	(i)	Absorbent for carbon dioxide
(b)	Na	(ii)	Electrochemical cells
(c)	KOH	(iii)	Coolant in fast breeder reactors
(d)	Cs	(iv)	Photoelectric cell

NEET PYQs for Group 1 Elements with Solutions

1.HCl was passed through a solution of $CaCl_2$,$MgCl_2$ and $NaCl$. Which of the following compound(s) crystallise(s)?

2.$20.0 \,g$ of a magnesium carbonate sample decomposes on heating to give carbon dioxide and $8.0 \,g$ magnesium oxide. What will be the percentage purity of magnesium carbonate in the sample ?

3.Which of the following oxides is most acidic in nature ?

4.Among the following alkaline earth metal halides, one which is covalent and soluble in organic solvents is

5.Equimolar solutions of the following were prepared in water separately. Which one of the solutions will record the highest pH ?

6.Magnesium reacts with an element $(X)$ to form an ionic compound. If the ground state electronic configuration of $( X )$ is $1 s ^{2} 2 s ^{2} 2 p ^{3}$, the simplest formula for this compound is

7.Which of the following is an amphoteric hydroxide ?

8.On heating which of the following releases ${CO_2}$ most easily ?

9.The compound A on heating gives a colourless gas and a residue that is dissolved in water to obtain B. Excess of ${CO_2}$ is bubbled through aqueous solution of B, C is formed which is recovered in the solid form. Solid C on gentle heating gives back A. The compound A is -

10.Match List-I with List-II. List - I List - II(a)Li(i)Absorbent for carbon dioxide(b)Na(ii)Electrochemical cells(c)KOH(iii)Coolant in fast breeder reactors(d)Cs(iv)Photoelectric cellChoose the correct answer from the options given below:

11.Ionic mobility of which of the following alkali metal ions is lowest when aqueous solution of their salts are put under an electric field ?

13.Which of the following statements is not correct?

14.Enzymes that utilize ATP in phosphate transfer require an alkaline earth metal (M) as the cofactor. M is:

15.Which one of the following is present as an active ingredient in bleaching powder for bleaching action?

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1.
HCl was passed through a solution of $CaCl_2$,$MgCl_2$ and $NaCl$. Which of the following compound(s) crystallise(s)?

2.
$20.0 \,g$ of a magnesium carbonate sample decomposes on heating to give carbon dioxide and $8.0 \,g$ magnesium oxide. What will be the percentage purity of magnesium carbonate in the sample ?

3.
Which of the following oxides is most acidic in nature ?

4.
Among the following alkaline earth metal halides, one which is covalent and soluble in organic solvents is

5.
Equimolar solutions of the following were prepared in water separately. Which one of the solutions will record the highest pH ?

6.
Magnesium reacts with an element $(X)$ to form an ionic compound. If the ground state electronic configuration of $( X )$ is $1 s ^{2} 2 s ^{2} 2 p ^{3}$, the simplest formula for this compound is

7.
Which of the following is an amphoteric hydroxide ?

8.
On heating which of the following releases ${CO_2}$ most easily ?

9.
The compound A on heating gives a colourless gas and a residue that is dissolved in water to obtain B. Excess of ${CO_2}$ is bubbled through aqueous solution of B, C is formed which is recovered in the solid form. Solid C on gentle heating gives back A. The compound A is -

10.
Match List-I with List-II.
List - I List - II
(a) Li (i) Absorbent for carbon dioxide
(b) Na (ii) Electrochemical cells
(c) KOH (iii) Coolant in fast breeder reactors
(d) Cs (iv) Photoelectric cell
Choose the correct answer from the options given below:

11.
Ionic mobility of which of the following alkali metal ions is lowest when aqueous solution of their salts are put under an electric field ?

13.
Which of the following statements is not correct?

14.
Enzymes that utilize ATP in phosphate transfer require an alkaline earth metal (M) as the cofactor. M is:

15.
Which one of the following is present as an active ingredient in bleaching powder for bleaching action?