Question # 1

What is called black gold.

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Petroleum

Coal

Coal tar

Natural gas

Which of the following combination is used to make buffer.

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NaOH and HCl

KOH and H2SO4

CH3COOH and CH3COONa

CH3COOH and NH4OH

Which one of the following oxides is basic.

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MnO

Mn2O3

MnO2

Mn2O7

Which of the following state is not true with respect to copper.

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it is malleable and ductile

It is a best conductor of heat and electricity

It forms alloys easily

Moltan copper absorbed carbon dioxide

In the reaction RCO2Na + Na OH (CaO) ______ RH, we eliminate carboxylate group as.

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CO2

Na2CO3

-CO

CaCO3

Solution with components which obeys Raoult's over the entire composition range are said to be.

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Real solution

Regular solutions

Dilute solutions

Ideal Solution

When calcium is heated in the flame of a Bunsen burner, the colour imparted to the flame is.

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Golden yellow

Brick red

Crimson red

Grassy green

Not a Characteristic property of ceramic material

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High temperature stability

High mechanical strength

Low elongation

Low hardness

Which of the following is a thermometric method.

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TGA

DTA

DTG

All

Which of the following does not represent Lewis acid.

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ZnCl2

FeCl2

BF3

Bul4

Hydrolysis of nucleoprotein result in the formation of.

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Proteins

Nucleic acids

Both A and B

They do not hydrolyse

Which substance is used as filler or additive in paper making.

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Starch

Glucose

Cellulose

Maltose

In a bucky ball each carbon atom in bound in __________ adjacent carbon atoms.

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1

2

3

4

Which metal burns in air at high temperature with the evolution of much heat.

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Cu

Hg

Pb

Al

Aviation Fuel contains.

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Light Naphtha

Medium Naphtha

Kerosene

Diesel

The chrome molybdenum steels contain how many percent of molybdenum

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0.10

0.20

0.30

0.40

Which of the following instruments is used to measure the optical activity.

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Refractometer

Conductivity meter

Polarimeter

Torsion meter

The constant temperature and pressure,the rates of effusion of various gases vary inversely as square root of their denature. This is a statement of.

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Boyle's law

Charles's law

Graham's law

Daltons's law

The reagent which can react with 1- chlorobutane to give substitution product is

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Al Cl3

KOH -CH3OH

NaCN

Mg/ether

Which of the following haloacids is stronger acids.

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FCH2COOH

ClCH2COOH

Br CH2COOH

ICH2COOH

Which of the following is diamagnetic

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O2

O2+

O2-

O2 ^2-

The name hydrogen was proposed by.

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Lavoisier

Rutherford

Henry Cavandish

Scheele

Photochemical smog consist of excessive amount of X in addition to aldehydes ketones, PAN etc. X is.

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Methane

Carbon monoxide

Ozone

Carbondioxide

The emission of light in a biological reaction is known as

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Fluorescence

Phosphorescence

Bioluminescence

Photolysia

Out of seven crystal system, how many can have body centered unit cell.

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3

4

2

7

The theoretical plate in chromatography is represented by how many equilibrium step

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One

Two

Three

Four

Fats and oil are_____________

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Acids

Alcohols

Salts

Base

Which of the following allows charge transfer through the solution but prevents mixing of the solution.

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Anode

Cathode

Electrode cell

Salt bridge

A high frequency sound has frequency

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100 Hz

200 HZ

300 Hz

500 Hz

Aromatic amine (X) was treated with alcoholic potash and another compound (Y) when foul smelling gas was formed with formula C2H3N (Y) was formed by reacting a compound (Z) with Cl2 in the presence of slaked lime . The compound (Z) is

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C6H5NC

CHCl3

CH3CH2OH

C6H5NH2

Which of the following reacts with hemoglobin of blood and produce toxic effect.

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Carbon dioxide

Carbon monoxide

Oxygen

Carbon suboxide

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