For water purification, we use...? Mcqs

Latest MCQs

For water purification, we use...?

(A) Chlorine
(B) Bromine

(C) Plants
(D) Young man

Latest MCQs

The element used in lead pencils is__________...?

(A) Zinc
(B) Lead

(C) Carbon
(D) Tin

Latest MCQs

What is the method that kills harmful microorganisms and prevents the spread of waterborne diseases such as cholera, dysentery, and typhoid...?

(A) Filtration
(B) Sedimentation

(C) Chlorination
(D) Distillation

Latest MCQs

Seedless vascular plants are...?

(A) Bryophytes
(B) Gymnosperms

(C) Pteridophytes
(D) None of these

Latest MCQs

Hepatitis and Polio is caused by________...?

(A) Virus
(B) Fungus

(C) Moss
(D) None of these

Latest MCQs

Quartz crystal in quartz watches work on the principle called...?

(A) Photoelectric effect
(B) Stark effect

(C) Thermionic effect
(D) Piezo-electric effect

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The heaviest naturally-occurring element is_________...?

(A) Radium
(B) Platinum

(C) Uranium
(D) Cadmium

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In a photocell light energy is converted into...?

(A) potential energy
(B) chemical energy

(C) heat energy
(D) electrical energy

Latest MCQs

When animals and plants are decayed in absence of air, there produces a gas called...?

(A) Natural Gas
(B) CNG

(C) LPG
(D) Biogas

Latest MCQs

Elastic rebound theory explains:...?

(A) formation of rocks
(B) structure of solids

(C) causes of earthquake
(D) None of these

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