IIT-JEE 2008 Paper 2 Offline | Structure of Atom Question 25 | Chemistry

1

IIT-JEE 2008 Paper 2 Offline

MCQ (Single Correct Answer)

+4

-1

Match the entries in Column I with the correctly related quantum number(s) in Column II. Indicate your answer by darkening the appropriate bubbles of the 4 $$\times$$ 4 matrix given in the ORS.

	Column I		Column II
(A)	Orbital angular momentum of the electron in a hydrogen-like atomic orbital.	(P)	Principal quantum number
(B)	A hydrogen-like one-electron wave function obeying Pauli's principle.	(Q)	Azimuthal quantum number
(C)	Shape, size and orientation of hydrogen like atomic orbitals.	(R)	Magnetic quantum number
(D)	Probability density of electron at the nucleus in hydrogen-like atom.	(S)	Electron spin quantum number

A

(A) $$\to$$ q,r; (B) $$\to$$ p,q,r; (C) $$\to$$ p,q,r; (D) $$\to$$ q,r;

B

(A) $$\to$$ q,r; (B) $$\to$$ p,q,r,s; (C) $$\to$$ p,q; (D) $$\to$$ s,r;

C

(A) $$\to$$ r,s; (B) $$\to$$ p,q,r; (C) $$\to$$ p,q,r; (D) $$\to$$ p,q;

D

(A) $$\to$$ q,r; (B) $$\to$$ p,q,r,s; (C) $$\to$$ p,q,r; (D) $$\to$$ p,q;

2

IIT-JEE 2008 Paper 1 Offline

MCQ (Single Correct Answer)

+3

-1

STATEMENT - 1 : The plot of atomic number (y-axis) versus number of neutrons (x-axis) for stable nuclei shows a curvature towards x-axis from the line of 45^o slope as the atomic number is increased.

STATEMENT - 2 : Proton-proton electrostatic repulsions begin to overcome attractive forces involving protons and neutrons in heavier nuclides

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

3

IIT-JEE 2007 Paper 2 Offline

MCQ (Single Correct Answer)

+3

-1

A positron is emitted from $$_{11}^{23}$$Na The ratio of the atomic mass and atomic number of the resulting nuclide is :

A

$$\frac{22}{10}$$

B

$$\frac{22}{11}$$

C

$$\frac{23}{10}$$

D

$$\frac{23}{12}$$

4

IIT-JEE 2006

MCQ (Single Correct Answer)

+6

-1.5

According to Bohr's theory
E_n = Total energy, K_n = Kinetic Energy, V_n = Potential Energy, r_n = Radius of n^th orbit
Match the following

Column I		Column II
(A)	$$\frac{V_n}{K_n} = ?$$	(P)	0
(B)	If radius of $$n^{\text{th}}$$ orbit $$\propto E_n^x$$, $$x = ?$$	(Q)	−1
(C)	Angular momentum in lowest orbital	(R)	−2
(D)	$$\frac{1}{r_n} \propto Z^y = ?$$	(S)	1

A

(A) $$\to$$ R, (B) $$\to$$ Pp, (C) $$\to$$ Qq, (D) $$\to$$ S

B

(A) $$\to$$ R, (B) $$\to$$ Q, (C) $$\to$$ P, (D) $$\to$$ S

C

(A) $$\to$$ S, (B) $$\to$$ P, (C) $$\to$$ Q, (D) $$\to$$R

D

(A) $$\to$$ P, (B) $$\to$$ R, (C) $$\to$$ Q, (D) $$\to$$ S

JEE Advanced Subjects