AIPMT 2003 | d and f Block Elements Question 71 | Chemistry

AIPMT 2003

MCQ (Single Correct Answer)

-1

The basic character of the transition metal monoxides follows the order
(Atomic no's. Ti = 22, V = 23, Cr = 24, Fe = 26)

VO > CrO > TiO > FeO

CrO > VO > FeO > TiO

TiO > FeO > VO > CrO

TiO > VO > CrO > FeO

AIPMT 2002

MCQ (Single Correct Answer)

-1

An atom has electronic configuration 1s² 2s² 2p⁶ 3s² 3p⁶ 3d³ 4s², you will place it in

fifth

fifteenth

second

third.

AIPMT 2002

MCQ (Single Correct Answer)

-1

Zn gives H₂ gas with H₂SO₄ and HCl but not with HNO₃ because

Zn act as oxidising agent when react with HNO₃

HNO₃ is weaker acid than H₂SO₄ and HCl

In electrochemical series Zn is above hydrogen

NO$$_3^ - $$ is reduced in preference to hydronium ion.

AIPMT 2002

MCQ (Single Correct Answer)

-1

General electronic configuration of lanthanides is

$$\left( {n - 2} \right){f^{1 - 14}}\,\left( {n - 1} \right){s^2}{p^6}{d^{0 - 1}}\,n{s^2}$$

$$\left( {n - 2} \right){f^{0 - 14}}\,\left( {n - 1} \right){d^{0 - 1}}\,n{s^2}$$

$$\left( {n - 2} \right){f^{0 - 14}}\,\left( {n - 1} \right){d^{10}}\,n{s^2}$$

$$\left( {n - 2} \right){d^{0 - 1}}\left( {n - 1} \right)\,{f^{1 - 14}}\,n{s^2}$$

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