Question # 1

Which of the substances Na, Hg, S Pt and graphic can be used as electrodes in electrolytic cells having aqueous solution?

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Na,Pt and graphite

Na and Hg

Pt and graphite only

Na and S only

The pore size of the filter paper depends upon

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Nature of the medium

Temperature of the medium

Size of the particles

Mass of the particles

Bell metal is an alloy of

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Cu,Zn,and Sn

Cu,Zn and Ni

Cu and Zn

Cu and Sn

The halide which is not hydrolysed is

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SiCI₄

SiF₄

CCI₄

PbCI₄

Which of the following belongs to the halogen family?

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Francium

Polonium

Radium

Astatine

Which one of the halogen acid is a liquid?

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HF

HCI

HBr

HI

The number of electrons in the M shell of the element with number 24 is

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24

12

13

8

Which one is primary alcohol?

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Buten-2-oI

Propan-2-oI

Butane-1-oI

2,3-Dimethylhexane-4-oI

Which of the following has linear shape?

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SP

SP²

SP³

None of the above

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