Question # 1

The aluminium alloy used to make parts of aircrafts is.

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Magnalium

Aluminium bronze

Duralumin

All of the these

The current voltage characteristics forms the basis of.

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Thermal analysis

Potentiometry

Polarography

Colorimetry

Which of the following is the best indicator for titration of NH4OH with HCl.

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Methyl red

Methyl orange

Eosin

Phenolphthalein

___________ surfactants perform well over a wide range of water hardness and pH.

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Anionic

Cationic

Nonionic

Neutral

Which of the following methods does not give the weight average molecular weight.

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Sedimentation equilibrium

Sedimentation velocity

Light scattering

Osmotic method

Which of the following process is not physical in nature.

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Mixing

Flocculation

Sedimentation

Activated sludge process

Which substances is not used as an additive in paper industry.

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Glucose

Starch

Alum

None of these

1 meter = ___________ nm

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10⁹

10^-9

10¹⁰

10^-10

Galvanized steel are steel products coated with

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Carbon

Sulphur

Zinc

Iron

Group IV A consist of elements.

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3

4

5

6

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