A non-metal which is a good conductor or heat and electricity is

Question

A non-metal which is a good conductor or heat and electricity is

A. iodine

B. sulphur

C. graphite

D. phosphorus

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The best specimen for drinking purposes is

A. rain water

B. river water

C. conductivity water

D. deep well water

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Which of the following is a communicable disease caused by viruses?

A. Cholera

B. Dysentery

C. Diabetes

D. Measles

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Chloroform used as anaesthetic should be preserved In the dark in tightly stoppered bottles because otherwise

A. it becomes coloured

B. it gets evaporated in air

C. it gets oxidised to phosgene

D. it gets decomposed to chloropicrin

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Metals are usually heavy. A light metal is

A. manganese

B. copper

C. potassium

D. plumbum

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Annealing of glass is carried out by

A. rapid cooling

B. rapid heating

C. slow cooling

D. slow heating

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Which one of the following metals is used to extract another metal?

A. Lead

B. Tin

C. Zinc

D. Aluminium

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Galvanising is the process of coating

A. iron with zinc

B. zinc with iron

C. copper with silver

D. silver with gold

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Reduction involves

A. loss of electrons

B. gain of electrons

C. gain of oxygen

D. removal of hydrogen

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Nylon is made from

A. terephthalic acid and ethylene glycol

B. hexamethylene diamine and adipic acid

C. cellulose nitrate

D. cellulose acetate

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Iron is rendered passive by

A. conc. H2SO4

B. conc. HCl

C. conc. HNO3

D. acetic acid

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Grape sugar is another name for

A. glucose

B. fructose

C. sucrose

D. maltose

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The gas evolved when ammonium nitrate is heated is

A. nitrogen

B. nitric oxide

C. nitrogen peroxide

D. nitrous oxide

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________ is left behind after distillation of petroleum.

A. Arsenic

B. Barium

C. Benzene

D. Bitumen

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Smelling salt contains

A. ammonium chloride

B. ammonium carbonate

C. ammonium sulphate

D. potassium nitrate

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Which of the following biology laboratory?

A. Phenol

B. Benzaldehyde

C. Formaldehyde

D. Acetic acid

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Which or the following is not a constituent or gun powder?

A. Ammonium nitrate

B. Nitre

C. Charcoal powder

D. Sulphur

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Which of the following is not an antibiotic?

A. streptomycin

B. terramycin

C. aureomycin

D. codein

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Which or the following gases is soluble in water and Is collected by the downward displacement or air?

A. Carbon dioxide

B. Sulphur dioxide

C. Ammonia

D. Hydrogen

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Rusting of iron cannot be prevented by

A. painting

B. applying alkaline phosphate

C. applying soap water

D. galvanising

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Rooms in places infected by plague are disinfected using

A. bleaching powder

B. iodoform

C. sulphur dioxide

D. chlorine

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Tincture iodine is a solution of

A. iodine in potassium iodide

B. iodine in alcohol

C. iodine in water

D. iodine in carbon disulphide

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The artificial silk produced from cellulose is

A. Polyethylene

B. Nylon

C. Terylene

D. Rayon

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The compound or nitrogen used in dry cells is

A. ammonia

B. ammonium nitrate

C. ammonium chloride

D. ammonium nitrite

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Which of the following types of water gives lather easily with soap?

A. Hard water

B. Heavy water

C. Soft water

D. Both (a) and (b)

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A light alloy having high tensile strength is

A. German silver

B. solder

C. magnalium

D. bell metal

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Plastics are synthetic

A. rubbers

B. fibres

C. resins

D. sugars

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Sulphur is readily soluble in

A. Water

B. Alcohol

C. Carbon-di-sulphide

D. Sodium chloride solution

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White vitriol is

A. ZnSO4 . 7H2O

B. FeSO4 . 7H2O

C. MgSO4 . 7H2O

D. CaSO4 . 2H2O

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Colour blindness is

A. a congenital disease

B. a communicable disease

C. an acquired disease

D. a contagious disease

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Deficiency of iron causes

A. nervous disorders

B. heart diseases

C. anaemia

D. impairment of vision

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Accepted Answer

C. graphite

A non-metal which is a good conductor or heat and electricity is

Correct Answer :

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Related Questions

The best specimen for drinking purposes is

Which of the following is a communicable disease caused by viruses?

Chloroform used as anaesthetic should be preserved In the dark in tightly stoppered bottles because otherwise

Metals are usually heavy. A light metal is

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Galvanising is the process of coating

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________ is left behind after distillation of petroleum.

Smelling salt contains

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Which or the following gases is soluble in water and Is collected by the downward displacement or air?

Rusting of iron cannot be prevented by

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A light alloy having high tensile strength is

Plastics are synthetic

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White vitriol is

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