Question # 1

A molecule that has polar bonds but is overall non - polar

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IF

CCl4

PCI3

All

A student put two eggs A and B in HCL solution, After five minutes he took them out for weighing but egg dropped in water accidentally. The student was able to take it out after 30 minutes, He weighed it, Its weight was 40.33g. Weight of egg B was also 40.33g. Teacher told him that if both eggs have been dropped in water, the weight of egg B would have been:

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equal to that of egg A

less than that of egg A

greater than that of egg A

unaffected instead

Density of a gas is usually expressed in

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Kg m³

Kg dm³

g dm^-3

g cm^-3

Based on the physico-chemical properties, proteins may be classified into the following types

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Simple proteins

Compound proteins

Derived proteins

All of the above

Group of element belongs to IIB group

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Zn. Cd. Hg

Cu. Ag. Au

Sc. Y. La

Ni. Pd. Pt

One of the following is not a biopolymer. Point out that one

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Lipid

Starch

Diamond

Protein

The total number of 3d-series transition elements is

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10

40

14

58

The simplest separating unit of a polymer is called:

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Monomer

Dimer

Trimer

Macromer

Exhaust fumes of cars contain which poisonous gas

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CH₄

C₂H₆

CO

All of these

lonization of KCIO3. is suppressed by

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Increasing temperatuse

adding KCl

adding NaNO3

Decreasing temperature

On electrophoresis for plasma proteins using buffer of pH 8.6

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The proteins are neutral

The proteins carry negative charge

The proteins carry positive charge

The proteins are easily precipitated

Chloroflurocarbon releases a chemical harmful to ozone

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Fluorine

Chlorine

Nitrogen peroxide

Sulphure dioxdie

Na reacts with phenol to produce

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H₂gas

Benzene

CO₂gas

CO gas

Which of the following is hypnotic?

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Acetaldehyde

Metaldehyde

Paraldehyde

None

Among the lanthandes the one obtained by synthetic method is

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Lu

Pm

Pr

Gd

Which is the correct electronic configuration of Cr - 24

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1s², 2s², 2p⁶, 3s², 3p⁶, 3d⁴, 4s²

1s², 2s², 2p⁶, 3s², 3p⁶, 3d³, 4s², 4p¹

1s², 2s², 2p⁶, 3s², 3p⁶, 3d⁵, 4s¹

1s², 2s², 2p⁶, 3s², 3p⁶, 3d⁵, 4p¹

Those compound which have any atom other than C as member of rings are called as

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Monocyclic

Hetrocyclic

Aliphatic

Both a and b

An example of water soluble vitamin is

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Vitamin D

Vitamin E

Vitamin A

Vitamin C

When ethylene glycol is heated with acidified potassium permanganate, the main organic compound obtained is

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Oxalic acid

Glyoxal

Formic acid

Ethanol

The potassium fertilizers are preferred for horticulture, tobacco and potatones, which of the following is popular potassium fertilizer

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Potassium oxide

Potassium chloride

Potassium sulphate

Potassium nitrate

Content is a combination of mainly:

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Calcarious

Argillaceous

Calcarious and argillaceous

Al₂O₃

Fluted filter paper is used to:

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Decrease rate of filtration

Increase rate of filtration

Maintain rate of filtration

None of above

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