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Chemistry Study Material बिभाग ‘ग’

Chemistry Study Material बिभाग ‘ग’ Shared By Shridab Khan

Chemistry Study Material बिभाग ‘ग’ on mahasarkar.co.in. This is the page where we are deal with Chemistry Study Material For Maharashtra Recruitment Exam. Every questions come from various source i.e. Matter and its Nature; Kinetic Theory of Matter; Chemical Reactions and the chemical Equations; Structure of the Atom; Periodic Table of Elements; Chemical Bonding; Oxidation and Reduction; Oxygen ans Air; Hydrogen and Water; Carbon and its Compounds; Nitrogen and its Compound;Acids; Bases and Salts; Occurrence of Metals; Petroleum and Natural Gas; Iron and steel; Environmental Chemistry and Pollution;Food Chemistry; Biochemistry and Life Processes; Polymers and platics; Electrochemistry; Dyes; Biotechnology; International Symbols for Units; Carbohydrates; Proteins and Nucleic Acids; Nucleoproteins and Nucleic Acids; Fats; Important Laws Governing Gases; Liquids and Solutions; Bioterrorism; Important Topics and Concepts Etc. यह पेज ओह सब स्टूडेंट के लिए है, जो नौकरी की तलाश में हैं और भारती परिक्षा दिने के लिए इच्छुक हैं।

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Chemistry Study Material बिभाग ‘ग’

  1. In human systems, vitamins cannot

(a) Help in digestion

(b) Help in metabolizing drugs

(c) Help in growth

(d) Supply energy

Ans:- (d) Supply energy

  1. For instant energy, athletes take

(a) Sucrose

(b) Vitamin C

(c) Sodium chloride

(4) Glucose

Ans:- (4) Glucose

  1. While cooking food, the compounds lost to the maximum extent extent are

(a) Fats

(b) Carbohydrates

(c) Proteins

(d) Vitamins

Ans:- (d) Vitamins

  1. In refrigerators, the liquid used as refrigerant is

(1) Liquid carbon dioxide

(2) Liquid nitrogen

(3) Liquid ammonia

(4) Super-cooled water

Ans:- (3) Liquid ammonia

  1. The substance present in good amounts in the sea and administered in certain deficiency diseases is

(a) Fluorine

(b) Sodium chloride

(c)  Iron

(d) Iodine

Ans:- (d) Iodine

  1. Excessive consumption of ethanol causes damage to the

(a) Kidneys

(b Lungs

(c) Heart

(d) Liver

Ans:- (4) Liver

  1. In oil wells, oil, water and gas are present in the ascending order,

(a) Gas, oil, water

(b) Water, oil, gas

(c) Water, gas, oil

(d) Oil, gas, water

Ans:- (b) Water, oil, gas

  1. Drinking soda is

(1) Neutral

(2) An oxidizing agent

(3) Acidic in nature

(4) Basic in Nature

Ans:- (3) Acidic in nature

  1. A drug that prevents infection and decay is called a/an

(a) Antiseptic

(b) Antimalarial drug

(c) Germicide

(d) Analgesic

Ans:-

  1. Half life of radioactive substance is 60 min during 3 hrs, the fraction of total no. Of atoms that would have decayed would be

(a) 12.5%

(b) 25%

(C) 8.5%

(d) 87.5%

Ans:- (d) 87.5%

  1. The branch of chemistry that deals with living systems is known as

(a) Organic chemistry

(b) Physical Chemistry

(c) Biological Chemistry

(d) Inorganic chemistry

Ans:- (c) Biological Chemistry

  1. Anhydrous calcium chloride acts as a/an

(a) Dehydrating agent

(b) Drug

(c) Oxidant

(d) Mordant

Ans:- (a) Dehydrating agent

  1. Cholesterol is a

(a) Type of chlorophyll

(b) Derivative of chloroform

(c) Fatty alcohol found in animal fats

(d) Chromium salt

Ans:- (c) Fatty alcohol found in animal fats

  1. A substance that removes dirt and grease from surfaces is called

(1) Detergent

(2) Lubricant

(3) Bleaching agent

(4) Reducing agent

Ans:- (1) Detergent

  1. A substance mixed with metals to promote fusion (melting) is called a

(1) Fuse

(2) Flux

(3) Fuel

(4) Calcinating agent

Ans:- (2) Flux

  1. The type of water which does not produce lather easily with soap is called

(1) Soft water

(2) Heavy water

(3) Hard water

(4) Mineral water

Ans:- (3) Hard water

  1. Inert gases are

(1) Miscible with water

(2) Not stable

(3) Chemically uncreative

(4) Chemically very active

Ans:- (3) Chemically uncreative

  1. Linseed cake is used for

(1) Washing purposes

(2) Feeding cattle

(3) Feeding newborns

(4) Filling crackers

Ans:- (2) Feeding cattle

19.The main use of ‘magnesia’ is a/an

(1) Mild laxative

(2) Antiseptic

(3) Antibiotic

(4) Pain killer

Ans:- (1) Mild laxative

  1. Ethyl alcohol is commonly made unfit for drinking by the addition of

(1) Potassium cyanide

(2) Methyl alcohol

(3) Chloroform

(4) Potassium chloride

Ans:- (2) Methyl alcohol

  1. The sugar unit present in DNA is derived from

(1) Glucose

(2) Sucrose

(3) Fructose

(4) Deoxyribose

Ans:- (4) Deoxyribose

  1. The poisonous substance that is the main constituent of tobacco is

(1) Morphine

(2) Aspirin

(3) Nicotine

(4) Reserpine

Ans:- (3) Nicotine

  1. Contains for carrying strong acids are made of

(1) Platinum

(2) Brass

(3) Copper

(4) Lead

Ans:- (4) Lead

  1. Alloy steel containing chromium to resist rusting is known as

(1) Wrought iron

(2) Cast iron

(3) Hard steel

(4) Stainless steel

Ans:- (4) Stainless steel

  1. Pencil ‘lead’ is made up of

(1) Graphite

(2) Charcoal

(3) Lead oxide

(4) Lampblack

Ans:- (1) Graphite

  1. A medicinal substance given against the intake of poisons or to prevent a disease from having an effect is known as an

(1) Antibody

(2) Antigen

(3) Antidote

(4) Antibiotic

Ans:- (3) Antidote

  1. Haemoglobin is

(1) The colouring matter of leaves of plants

(2) The colouring matter of blood

(3) A compound present in milk

(4) A compound that transmists Signal to the brain

Ans:- (2) The colouring matter of blood

  1. The gas emitted by burning wood is mainly

(1) Carbon monoxide

(2) Sulphur dioxide

(3) Carbon dioxide

(4) Methane

Ans:- (3) Carbon dioxide

  1. Bakelite is obtained from

(1) Phenol and formaldehyde

(2) Phenol and formic acid

(3) Phenol and acetaldehyde

(4) Adipic acid and caprolactam

Ans:- (1) Phenol and formaldehyde

  1. Petroleum is found in

(1) Igneous rocks

(2) Sedimentary rocks

(3) Metamorphic rocks

(4) Marshy land

Ans:- (2) Sedimentary rocks

  1. The disease ‘beri beri’ is caused by the deficiency of

(1) Vitamin B

(2) Hormones

(3) Iodine

(4) Iron

Ans:- (1) Vitamin B

  1. Sweat contains

(1) Pure water

(2) Water, salt and waste matter

(3) Phosphoric acid

(4) Calcium phosphate and water

Ans:- (2) Water, salt and waste matter

  1. Separation of mixtures of two compounds by chromatographic method is based upon differential

(1) Adsorption

(2) Densities

(3) Absorption

(4) Solubilities

Ans:- (1) Adsorption

  1. Saliva hydrolyses starch to

(1) Glucose

(2) Sucrose

(3) Fructose

(4) Acetic acid

Ans:- (1) Glucose

  1. Allugel tablets used to reduce acidity contain

(1) Sodium carbonate

(2) Sodium hydroxide

(3) Ammonia

(4) Aluminium hydroxide

Ans:- (4) Aluminium hydroxide

  1. The main use of salt in the diet is to

(1) Make the taste of food better

(2) Produce in small amounts the hydro-chloric acid required for the digestion of food

(3) Ease the process of cooking

(4) Increase the solubility of food particles in water

Ans:- (2) Produce in small amounts the hydro-chloric acid required for the digestion of food

  1. The metal most abundantly used by man is

(1) Gold

(2) Aluminium

(3) Copper

(4) Iron

Ans:- (4) Iron

  1. The best fertilizer for plants is

(1) Compost

(2) Ammonium sulphate

(3) Super phosphate of lime

(4) Urea

Ans:- (1) Compost

  1. The human body contains the maximum amount of

(1) Proteins

(2) Water

(3) Fats

(4) Plasma

Ans:- (2) Water

  1. Reserpine is used to

(1) Alleviate pain

(2) Cure rickets

(3) Alleviate hypertension

(4) Cure tuberculosis

Ans:- (3) Alleviate hypertension

  1. The metal that finds use in electromagnets is

(1) Soft iron

(2) Chromium

(3) Nickel

(4) Copper

Ans:- (1) Soft iron

  1. The pair of metals used in the manufacture of stainless steel are

(1) Chromium and steel

(2) Zine and iron

(3) Copper and iron

(4) Iron and chromium

Ans:-

  1. The compound used as antifreeze is

(1) Water

(2) Ethyl alcohol

(3) Glycol

(4) Methanol

Ans:- (3) Glycol

  1. The difference between isotopes of an element is due to the presence of a different number of

(1) Protons

(2) Neutrons

(3) Electrons

(4) Photons

Ans:- (2) Neutrons

  1. The drug against infectious diseases is

(1) Sulphathiazole

(2) Insulin

(3) Aspirin

(4) Reserpine

Ans:- (1) Sulphathiazole

  1. Photo oxidation of a ‘cross-linked polymer’ is

(1) Heat

(2) Light

(3) A catalyst

(4) Oxygen

Ans:- (2) Light

  1. Indigo is a

(1) Vat dye

(2) Basic dye

(3) Acidic dye

(4) Ingrain dye

Ans:- (1) Vat dye

  1. The material which can be deformed permanently by heat and pressure is a

(1) Thermoplastic

(2) Thermoset

(3) Chemical compound

(4) Polymer

Ans:- (2) Thermoset

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