Question # 1

Final paper wound in the form of a real having final moisture of about.

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6-8%

9 - 12 %

13-15 %

4 - 10%

The group of steel are water hardened tool steels.

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Groups S

Groups W

Groups O

Group F

Electron gas theory is able to explain

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Metallic lusture and optical properties

Malleability and ductility

High electrical and thermal conductivity

All of the above

In which of the following compound valency of carbon in 4 but its oxidation number is zero

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Methane

Carbon dioxide

Carbon monoxide

Formaldeyde

The hydrogen bond is strongest in.

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O - H .............S

S - H.............O

F- H....................F

F - H...............O

Which of the following is soluble in water.

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AgF

AgCl

AgBr

Ag I

Aluminium hydroxide is.

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An acid

An amphoteric hydroxide

A base

An explosive hydroexide

For each value of l. the number of m velocity are.

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n²

2l

(2l+1)

(n+1)

The entropy change accompanying any physical or chemical transformation approaches zero as T approaches zero. This statement refers to.

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Helmholtz law

Third law of thermodynamics

Second law of thermodynamics

Nernat heat theorem

Proteins have characteristics

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Melting poirn t

Iso electric point

Boiling point

All of these

The equation which relates the reaction rates and equilibrium constants of many reactions is known as.

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Taft equation

Hammett equation

Differential equation

Linear equation

The percentage of nitrogen in ammonium sulphate is__________%

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27

21

23

19

Which of the following technique is not related to instrumental analysis.

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Optical method

Colorimetry

Polarography

Gravimetric analysis

Which of the following quantity is correct for micro analysis.

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1 -10 mg or < 50 ml

10-20 mg or > 50 mL

50-100 mg or < 100 mL

None of above

Which of the following statements do not represent Lewis idea of acids and base?

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Compounds which have completely filled orbitals

Compounds which have incompletely filled orbitals

Compounds in which the central atom can expand its octel

All simple metal ions like Ag+, Al3+ etc.

The formula of borax glass is.

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Na2B4O7 10H2O

Na2B4O7 5H2O

Na B4 O7

None of above

The binding site on ribosome t-RNA and m-RNA is provided by

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Polysome

Ribosomal RNA

Codone

DNA

When fullerencs were discovered they were thought to be

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First example of spherical aromatic molecule

First example of spherical non aromatic molecule

First example of diamond lime molecule

None of the above

in monel metal copper is alloyed wiht which metal.

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Fe

Mn

Ni

All

Group III A of the periodic table consist of elemetns.

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3

4

5

6

The size of iso electronic species - F- , Ne, and Na+ is affected by

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Nuclear charge (Z)

Valence principal quantum number (n)

Electron electron interaction in the outer orbital

None of the factors because their size to the same.

The compound (CH3)3COH according to IUPAC is known as.

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Tert Butanol

2,2 -Dumethyl -Propanol

2- Methyl -2-propanol

Tert Alcohol

The gap between occupied and the unoccupied orbitals is not very large and the conduction of electricity is negligible at lower temperature and appreciable at high temperatures then it will be.

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Good conductor

Non conductor

Semi conductor

None of the above

Which of the following statement is not relevant with nitrous oxide.

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It is a colorless and odourless gas

It is non toxic gas

It is present in the atmosphere in higher concentration

It has high reactivity in the lower atmosphere

Which name is associated with the rules which help in predicting the portability of anion.

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Soddy

Slater

Fajan

Linus pauling

In reverse phase chromatography which of the analyte will be retained more on the stationary phase.

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Semi polar

Non polar

Polar

None of the above

Coagulation of protein on treatment with heavy motal salts or heating is called.

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Decolorisation

Denaturation

^{Sedimentation process}

Reversible precipitation

Ferrochrum contains Cr up to

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60-70%

70-80%

80-90%

40-50%

For an elementary reaction

2A + B ------------------- C + D

The molecularity of the reaction is.

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1

2+

3

4

The unit of nucleic acid having base sugar combination is called.

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Nucliec acid

Nucleoside

Nucleotide

None of these

The rate constant of a reaction depends on

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Concentration of reactants

Concentration of products

Temperature

Time

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