Question 1: Palette 1/24

JEE Advanced 2009 MSQ

The compound(s) formed upon combustion of sodium metal in excess air is (are)

A

Na₂O₂

B

Na₂O

C

NaO₂

D

NaOH

Question 2: Palette 2/24

JEE Advanced 2008 MCQ

Aqueous solutions of Na$_2$S$_2$O$_3$ on reaction with Cl$_2$ gives:

A

Na$_2$S$_4$O$_6$

B

NaHSO$_4$

C

NaCl

D

NaOH

Question 3: Palette 3/24

JEE Advanced 2007 MCQ

The question contains STATEMENT - 1 (Assertion) and STATEMENT - 2 (Reason) and has 4 choices (a), (b), (c) and (d) out of which ONLY ONE is correct.
STATEMENT - 1 Alkali metals dissolve in liquid ammonia to give blue solutions. because
STATEMENT - 2 Alkali metals is liquid ammonia give solvated species of the type [M(NH₃)_n]⁺ (M = alkali metals)

A

Statement - 1 is true and Statement - 2 is true; Statement - 2 is a correct explanation for Statement - 1

B

Statement - 1 is true and Statement - 2 is true; Statement - 2 is not a correct explanation for Statement - 1

C

Statement - 1 is True, Statement - 2 is False

D

Statement - 1 is False, Statement - 2 is True

Question 4: Palette 4/24

JEE Advanced 2007 MCQ

Statement-1 : Alkali metals dissolves in liquid ammonia to give blue solutions

Statement-2 : Alkali metals in liquid ammonia give solvated species of the type $\left[\mathrm{M}\left(\mathrm{NH}_{3}\right)_{n}\right]^{+} (\mathrm{M}=$ alkali metals).

A

Statement-1 is True, Statement-2 is True; Statement-2 is a correct explanation for Statement-1

B

Statement-1 is True, Statement-2 is True; Statement-2 is NOT a correct explanation for Statement-1

C

Statement-1 is True, Statement-2 is False

D

Statement-1 is False, Statement-2 is True

Question 5: Palette 5/24

JEE Advanced 2006 MCQ

MgSO₄ on reaction with NH₄OH and Na₂HPO₄ forms a white crystalline precipitate. What is its formula?

A

Mg(NH₄)PO₄

B

Mg₃(PO₄)₂

C

MgCl₂.MgSO₄

D

MgSO₄

Question 6: Palette 6/24

JEE Advanced 2004 MCQ

A sodium salt on treatment with MgCl₃ gives white precipitate only on heating. The anion of the sodium salt is

A

$HCO_3^-$

B

$CO_3^{2-}$

C

$NO_3^{-}$

D

$SO_4^{2-}$

Question 7: Palette 7/24

JEE Advanced 2001 MCQ

The set representing the correct order of first ionization potential is

A

K > Na > Li

B

Be > Mg > Ca

C

B > C > N

D

Ge > Si > C

Question 8: Palette 8/24

JEE Advanced 1998 MSQ

Highly pure dilute solution of sodium in liquid ammonia

A

shows blue color

B

exhibits electrical conductivity

C

produces sodium amide

D

produces hydrogen gas

Question 9: Palette 9/24

JEE Advanced 1996 MCQ

The following compounds have been arranged in order of their increasing thermal stabilities. Identify the correct order
K₂CO₃ (A), MgCO₃ (B), CaCO₃ (C), BeCO₃ (D)

A

A < B < C < D

B

D < B < C < A

C

D < B < A < C

D

B < D < C < A

Question 10: Palette 10/24

JEE Advanced 1994 MCQ

Statement (S) The alkali metals can form ionic hydrides which contain the hydride ion H^-.
Explanation (E) The alkali metals have low electronegativity; their hydrides conduct electricity when fused and liberate hydrogen at the anode.

A

Both S and E are true and E is the correct explanation of S

B

Both S and E are true but E is not the correct explanation of S

C

S is true but E is false

D

S is false but E is true

Question 11: Palette 11/24

JEE Advanced 1992 MSQ

The species that do not contain peroxide ions are

A

PbO₂

B

H₂O₂

C

SrO₂

D

BaO₂

Question 12: Palette 12/24

JEE Advanced 1990 MSQ

When zeolite, which is hydrated sodium aluminium silicate is treated with hard water the sodium ions are exchanged with

A

H⁺ ions

B

Ca⁺⁺ ions

C

$SO_4^{--}$ ions

D

Mg⁺⁺ ions

Question 13: Palette 13/24

JEE Advanced 1987 MCQ

The metallic lustre exhibited by sodium is explained by

A

diffusion of sodium ions

B

oscillation of loose electrons

C

excitation of free protons

D

existence of body centered cubic lattice

Question 14: Palette 14/24

JEE Advanced 1987 MCQ

Sodium when burnt in excess of oxygen gives sodium oxide.

A

TRUE

B

FALSE

Question 15: Palette 15/24

JEE Advanced 1986 MCQ

The pair of compound which cannot exist together in solution is:

A

NaHCO₃ and NaOH

B

Na₂CO₃ and NaHCO₃

C

Na₂CO₃ and NaOH

D

NaHCO₃ and NaCl

Question 16: Palette 16/24

JEE Advanced 1986 MCQ

The softness of group I-A metals increases down the group with increasing atomic number.

A

TRUE

B

FALSE

Question 17: Palette 17/24

JEE Advanced 1985 MCQ

The oxide that gives hydrogen peroxide on treatment with a dilute acid is

A

PbO₂

B

Na₂O₂

C

MnO₂

D

TiO₂

Question 18: Palette 18/24

JEE Advanced 1985 MCQ

Molecular formula of Glauber's salt is:

A

MgSO₄.7H₂O

B

CuSO₄.5H₂O

C

FeSO₄.7H₂O

D

Na₂SO₄.10H₂O

Question 19: Palette 19/24

JEE Advanced 1984 MCQ

The hydration energy of Mg⁺⁺ is larger than that of:

A

Al³⁺

B

Na⁺

C

Be⁺⁺

D

Mg³⁺

Question 20: Palette 20/24

JEE Advanced 1982 MCQ

MgCl₂.6H₂O on heating give anhydrous MgCl₂

A

TRUE

B

FALSE

Question 21: Palette 21/24

JEE Advanced 1981 MCQ

A solution of sodium metal in liquid ammonia is strongly reducing due to the presence of

A

sodium atoms

B

sodium hydride

C

sodium amide

D

solvated electrons

Question 22: Palette 22/24

JEE Advanced 1980 MCQ

Calcium is obtained by

A

electrolysis of molten CaCl₂

B

electrolysis of solution CaCl₂ in water

C

Reduction of CaCl₂ with carbon

D

roasting of limestone

Question 23: Palette 23/24

JEE Advanced 1980 MCQ

HCL is added to the following oxides. Which one would give H₂O₂?

A

MnO₂

B

PbO₂

C

BaO₂.8H₂O

D

NO₂

Question 24: Palette 24/24

JEE Advanced 1978 MCQ

The substance absorbs CO₂ and violently reacts with water. The substance is

A

CaCO₃

B

CaO

C

H₂SO₄

D

ZnO