Everyday Science MCQs

Page No. 23

Diamond is harder than Graphite because of___________?


aDifference in crystalline Structure

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bTetrahedral structure of diamond

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cDifference in layer of atoms

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dNone of these

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Which of these is a micronutrient of plants?


aOxygen

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bNitrogen

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cBoron

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dCarbon

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View Answer Boron

Which planet is called “red planet”?


aMars

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bVenus

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cJupiter

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dSaturn

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View Answer Mars

An example of rhizome is_________?


aCarrot

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bTomato

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cGinger

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dGarlic

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View Answer Ginger

Which metal is pure conductor of electricity?


aCopper

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bGold

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cSilver

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dLead

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View Answer Silver

A colloidal system in which a liquid is dispersed into a liquid is called_________?


aPercipitate

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bGel

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cEmulsion

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dSol

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View Answer Emulsion

Which of the following organisms releases molecular oxygen into water?


aE. coli

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bPhytoplankton

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cAmoeba

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dSalmonella

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View Answer Phytoplankton

The process of converting wet waste to manure is___________?


aMetabolism

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bConservation

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cIncineration

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dComposting

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View Answer Composting

Which of the following pollutants in water causes “Minamata disease?


aMethyl Mercury

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bLead

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cPerchlorate

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dSalmonella

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View Answer Methyl Mercury

lightest metal is__________?


aLithium

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bSodium

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cMagnesium

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dAluminium

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View Answer Lithium

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