Question # 1

Which of the following is directly related to Qualitative analysis?

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Identification

Separation

Measurement

Calculation

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

Which metal is protected by a layer of its own oxide?

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AI

Ag

Au

Fe

Which one of the halogen acid is a liquid?

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HF

HCI

HBr

HI

Which of the following transition metal ions will have definite value of magnetic moment?

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Sc³⁺

Ti³⁺

Cu⁺

Zn²⁺

If the solvent is inflammable for heating purpose we use

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Ice bath

Water bath

Wire gauze

Thermostat

Ionic solids with defects contain

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Equal number of cation and anion vacancies

Interstitial anions and anion vacancies

Cation vacancies only

Cation vacancies and interstitial cations

The spectrum of helium is expected to be similar to that of

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H

Li⁺

Na

He⁺

The osmotic pressure of solution increases if

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Temperature is decreased

Solution constant is increased

Number of solute molecules are increased

Volume is increased

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