The Chennai School Of banking

GENERAL SCIENCE Chemistry - 07

Question No : 1

Adding which substance gives green colour to glass?
(1) Calcium oxide          
(2) Iron oxide    
(3) Chromium oxide      
(4) Manganese oxide

Question No : 2

Chromite is an ore/mineral of –
(1) Zinc  
(2) Uranium
(3) Chromium
(4) Titanium

Question No : 3

Sphalerite is an ore/mineral of –
(1) Mercury
(2) Molybdenum
(3) Silver
(4) Zinc

Question No : 4

Why does Carbon Tetrachloride have no dipole moment?
(1) Because of same size of carbon and chlorine atoms
(2) Because of regular tetrahedral structure
(3) Because of planar structure
(4) Because of similar electron affinities of carbon and chlorine

Question No : 5

LPG is a mixture of _____
(1) methane and butane
(2) butane and propane
(3) methane and propane
(4) ethane and propane

Question No : 6

Which glass is used to make sunglasses?
(1) Crook’s glass
(2) Potash glass
(3) Jena glass
(4) Soda glass

Question No : 7

For what is Mohs scale used?
(1) To measure brightness of a substance
(2) To measure viscosity of a liquid
(3) To measure elasticity of a material
(4) To measure hardness of minerals

Question No : 8

Which base is present in lime water?
(1) Sodium hydroxide
(2) Magnesium hydroxide
(3) Calcium hydroxide
(4) Ammonium hydroxide

Question No : 9

In the following reaction, fill in the blank, Acid + Base ®_____+ Water
(1) Carbon dioxide
(2) Metal Oxide
(3) Hydrogen Gas
(4) Salt

Question No : 10

Process of loosing electrons is known as _____
(1) oxidation
(2) reduction
(3) radiation
(4) both oxidation and reduction

Question No : 11

What is an endothermic reaction?
(1) Reaction in which heat is released
(2) Reaction in which heat is absorbed
(3) Reaction in which neither heat is released nor absorbed
(4) None of these

Question No : 12

Which of the following is a chemical formula of quicklime?

Question No : 13

_____is made by mixing iron with carbon and metals like chromium, nickel and manganese
(1) Ship
(2) Stainless Steel
(3) Rust
(4) Ozone

Question No : 14

The substances which have very low ignition temperature and can easily catch fire with a flame are called _____substances
(1) Hazardous
(2) Perilous
(3) Incombustible
(4) Inflammable

Question No : 15

The least preferred technique in the disposal of Municipal Solid Waste is :
(1) Incineration
(2) Composting
(3) Land filling
(4) Briquetting

Question No : 16

Sour taste of ‘Coca Cola’ is due to the presence of-
(1) Acetic acid
(2) Phosphoric acid
(3) Hydrochloric acid
(4) Formic acid

Question No : 17

Hydrogen bomb is based on the principle of –
(1) controlled fission reaction
(2) uncontrolled fission reaction
(3) controlled fusion reaction
(4) uncontrolled fusion reaction

Question No : 18

Now-a-days yellow lamps are frequently used as street lights. Which of the following gases is used in these lamps?
(1) Sodium
(2) Neon
(3) Hydrogen
(4) Nitrogen

Question No : 19

The resources which can be used continuously, year-after are called –
(1) Biotic
(2) Abiotic
(3) Non-renewable
(4) Renewable

Question No : 20

The important metal used with iron to make it rust free-
(1) Aluminium
(2) Carbon
(3) Chromium
(4) Tin

Question No : 21

Actinides are the elements with atomic numbers from
(1) 89 to 103
(2) 101 to 115
(3) 97 to 104
(4) 36 from 43

Question No : 22

These days yellow lamps are frequently used as street light. Which one of the following us used in these lamps:
(1) Sodium
(2) Neon
(3) Hydrogen
(4) Nitrogen

Question No : 23

To avoid ‘knocking’ of the engine of a car, which one of the following is used as an anti-knocking agent?
(1) Ethyl alcohol
(2) Butane
(3) Tetra Ethyl Lead
(4) White Petrol

Question No : 24

Which one of the following gases, released from biogas plant is used as a fuel gas?
(1) Butane
(2) Propane
(3) Methane
(4) Ethane

Question No : 25

Methane gas producing field is –
(1) Wheatfield
(2) Paddy field
(3) Cotton field
(4) Groundnut field

Question No : 26

Which of the following method is used for measuring the age of the earth?
(1) Iron dating process
(2) Biotechnology Law
(3) Biological clock method
(4) Uranium process

Question No : 27

Table salt (NaCl) is a product of-
(1) Weak acid and weak base
(2) Strong acid and strong base
(3) Weak acid and strong base
(4) Strong acid and weak basic

Question No : 28

Radioactivity is measured by-
(1) Hydrometer
(2) Geiger Counter
(3) Seismometer
(4) Ammeter

Question No : 29

Soda water was invented by-
(1) Tivadar Puskas
(2) Joseph Priestley
(3) Petrache Poenaru
(4) James Leonard Plimpton

Question No : 30

Who discovered benzene?
(1) Hal Anger
(2) Michael Faraday
(3) Bruce Ames
(4) Nicolas Appert

Question No : 31

Malachite is an ore/mineral of –
(1) Lead
(2) Manganese
(3) Mercury
(4) Copper

Question No : 32

NaCl has -----
(1) Nonpolar bonds
(2) Polar covalent bonds
(3) Metallic bonds
(4) Ionic bonds

Question No : 33

First country to impose carbon tax is _____
(1) Australia
(2) Iceland
(3) USA
(4) New Zealand

Question No : 34

The common name of sodium bicarbonate is _____
(1) baking soda
(2) borax
(3) bleach
(4) Epsom salt

Question No : 35

What is the net charge on Calcium fluoride?
(1) 1+
(2) 0
(3) 1-
(4) 2-

Question No : 36

Which of the following is not a component of Smog?
(1) Volatile organic compounds
(2) Nitrogen Oxide
(3) Sulphur dioxide
(4) Chlorine oxide

Question No : 37

Which among the following is not an example of emulsion?
(1) Chocolate-Milk
(2) Butter
(3) Whipped Cream
(4) Curd

Question No : 38

Which of the following causes fly ash?
(1) Hydroelectric Power Station
(2) Coal Combustion Power Plant
(3) Nuclear Power Plant
(4) Tidal Power Plant

Question No : 39

Vinegar and Baking Soda together produce _____
(1) Copper
(2) Carbon Dioxide
(3) Copper Sulphate
(4) Magnesium Oxide

Question No : 40

Silica gel is a
(1) Moisturizer
(2) Flavouring agent
(3) Drying agent
(4) Delicious food

Question No : 41

The most abundant metal in the Earth’s crust is the following?
(1) zinc  
(2) copper
(3) aluminium
(4) iron

Question No : 42

A balloon filled with helium rises in air because –
(1) air exerts an upward force on the balloon
(2) the balloon is weightless
(3) helium is less dense than air
(4) helium pushes down on the air below the balloon

Question No : 43

White coal is ____
(1) Uranium
(2) Hydro electricity
(3) Diamond
(4) Ice

Question No : 44

The technique of chromatography is used to-
(1) Identify colour substances
(2) Determine the structure of substances
(3) Dry distillation of colouring substances
(4) Separate the substances from a mixture

Question No : 45

Change of water into the vapour is called-
(1) Natural
(2) Physical
(3) Chemical
(4) Biological
 

Question No : 46

The energy, found in dry cell is-
(1) Mechanic
(2) Electric
(3) Chemical
(4) Electromagnetic

Question No : 47

Milk openly placed for sometime becomes sour due to-
(1) Carbonic acid
(2) Lactic acid
(3) Citric acid
(4) Acetic acid

Question No : 48

A polymer used for making nonstick surface coating for utensils is-
(1) Polyvinyl chloride
(2) Teflon
(3) Polystyrene
(4) Polypropylene

Question No : 49

Which of the following is the procedure for a biogas plant-
(1) Fermentation
(2) Reduction
(3) Hydrogenation
(4) Polymerization

Question No : 50

Which is the most reactive metal?
(1) Sodium
(2) Calcium
(3) Iron
(4) Potassium