CSIR Chemical Sciences: Questions 206 - 210 of 329

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Question number: 206

» Physical Chemistry » Solid State » Crystal Structures

Appeared in Year: 2014

MCQ▾

Question

Interplanar spacing of (110) planes in a cubic unit cell with lattice parameter a=4.242A° (Dec)

Choices

Choice (4) Response

a.

7.35A°

b.

2.45A°

c.

6A°

d.

3A°

Question number: 207

» Physical Chemistry » Electrochemistry » Ionic Equilibria

Appeared in Year: 2012

MCQ▾

Question

Equilibrium constant for an electrochemical reaction: -

2Fe3++Sn2+2Fe2++Sn4+ is [E°(Fe3+Fe2+)=0.75v,E°(Sn4+Sn2+)=0.15v,(2.303RTF)=0.06v] (Dec)

Choices

Choice (4) Response

a.

1030

b.

1020

c.

1040

d.

1010

Question number: 208

» Inorganic Chemistry » Organometallic Compounds » Bonding and Structure and Reactivity

Appeared in Year: 2015

MCQ▾

Question

Binding modes of NO in 18 electron compound [CO(CO)3(NO)] and [Ni(n5Cp)(NO)], respectively are, (June)

Choices

Choice (4) Response

a.

Linear and bent

b.

Bent and bent

c.

Linear and linear

d.

Bent and linear

Question number: 209

» Physical Chemistry » Electrochemistry » Conductometric and Potentiometric Titrations

Appeared in Year: 2011

MCQ▾

Question

Standard electrode potential (E°) of Fe3+/Fe2+ and Fe2+/Fe electrodes are + 0.77 V and -0.44 V resp. at 300K. E° Of Fe3+/Fe electron at same temperature, is (Dec)

Choices

Choice (4) Response

a.

0.33V

b.

0.11V

c.

1.21V

d.

0.04 V

Question number: 210

» Inorganic Chemistry » Organometallic Compounds » Bonding and Structure and Reactivity

Appeared in Year: 2016

MCQ▾

Question

Which of following is a Nido-borane?

Choices

Choice (4) Response

a.

B4H10

b.

[B6H6]2

c.

B5H9

d.

B5H11

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