IIT-JEE 2006 | Structure of Atom Question 25 | Chemistry

IIT-JEE 2006

MCQ (Single Correct Answer)

-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

(A) V_n/K_n = ?
(B) If radius of n^th orbit $$ \propto E_n^x,x = ?$$
(C) Angular momentum in lowest orbital
(D) $${1 \over {{r_n}}} \propto {Z^y},y = ?$$

Column II

(p) 0
(q) -1
(r) -2
(s) 1

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

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

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

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

IIT-JEE 2005 Screening

MCQ (Single Correct Answer)

-0.25

The number of radial nodes of 3s and 2p orbitals are respectively

2, 0

0, 2

1, 2

2, 1

IIT-JEE 2004 Screening

MCQ (Single Correct Answer)

-0.25

The radius of which of the following orbit is same as that of the first Bohr's orbit of hydrogen atom?

He⁺ (n = 2)

Li²⁺ (n = 2)

Li²⁺ (n = 3)

Be³⁺ (n = 2)

IIT-JEE 2003 Screening

MCQ (Single Correct Answer)

-0.5

Which of the following pairs are isoelectronic and isostructural?
$$NO_3^-$$, $$CO_3^{2-}$$, $$ClO_3^-$$, SO₃

$$NO_3^-$$, $$CO_3^{2-}$$

SO₃, $$NO_3^-$$

$$ClO_3^-$$, $$CO_3^{2-}$$

$$CO_3^{2-}$$, SO₃

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