Sodium carbonate is produced by____________...? Mcqs

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Sodium carbonate is produced by____________...?

(A) haber process
(B) Amonia solvay process

(C) decons process
(D) lead chamber process

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The point where the enzyme is most active is known as ______...?

(A) Neutral pH
(B) Acidic pH

(C) Basic pH
(D) Optimum pH

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Disease beri beri is because of___________...?

(A) Lack of green vegetables in diet
(B) Use of milled rice

(C) Deficiency of calcium in bones
(D) Poor use of citrus fruits

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which type of rock is made from molten(Fire) material within the earth surface...?

(A) Sedimentary rock
(B) Schist rock

(C) Igneous rock
(D) Metamorphic rock

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________ is an instrument used in determining the directions of movement of clouds....?

(A) Nephoscope
(B) Stethoscope

(C) Metroscope
(D) None of the above

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Which is the Coldest Planet ...?

(A) Earth
(B) Venus

(C) Mercury
(D) Uranus

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A method of removing suspended sand particles and insoluble physical impurities from water is known as...?

(A) Sedimentation
(B) Filtration

(C) Distillation
(D) Chlorination

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How many planets in Solor Syestem...?

(A) 4
(B) 5

(C) 6
(D) 8

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What melted rock eventually becomes lava...?

(A) Iron
(B) Metals

(C) Magma
(D) Coal

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‘Black holes’ refers to_______________...?

(A) Holes occurring in heavenly bodies
(B) Bright spots on the sun

(C) Collapsing object of high density
(D) Collapsing object of low density

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