Everyday Science MCQs

Page No. 13

The gas usually filled in the electric bulb is___________?


aNitrogen

✓


bhydrogen

✖


cCarbon dioxide

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doxygen

✖


View Answer Nitrogen

The ozone molecule contains which type of bonding__________?


aDative bond

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bCovalent bond

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cBoth A and B

✓


dIonic bond

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View Answer Both A and B

The gases used in different types of welding would include ___________?


aOxygen and hydrogen

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bOxygen, hydrogen, acetylene and nitrogen

✖


cOxygen and acetylene

✓


dOxygen, acetylene and argon

✖


View Answer Oxygen and acetylene

The inert gas which is substituted for nitrogen in the air used by deep sea divers for breathing, is ________ ?


aArgon

✖


bXenon

✖


cHelium

✓


dKrypton

✖


View Answer Helium

Chemical formula for Water is _______ ?


aNaAlO2

✖


bH2O

✓


cAl2O3

✖


dCaSiO3

✖


View Answer H2O

Newton’s Third Law of Motion?


aevery action there is an equal and opposite reaction.

✓


battraction or repulsion between two charges

✖


cvolume of a given mass of gas increases or decreases

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dtemperature remaining constant, volume of a given mass of a gas varies inversely

✖



The PH of milk is __________?


a6.0

✖


b6.5

✓


c7.0

✖


d7.5

✖


View Answer 6.5

Turpentine is obtained from___________?


aOak tree

✖


bPine tree

✓


cBirch tree

✖


dLemon tree

✖


View Answer Pine tree

Soap and detergents remove the dirt from clothes due to__________?


aCapillary action

✖


bOsmosis

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cLowering of interfacial tension

✓


dDiffusion

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Which of the following is a component of soap?


aSodium sulphate

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bSodium stearate

✓


cSodium chloride

✖


dSodium nitrate

✖


View Answer Sodium stearate

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