What is the molecular formula for Nitric acid ________ ...? Mcqs

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What is the molecular formula for Nitric acid ________ ...?

(A) HNO2
(B) HNO3

(C) HN2O2
(D) H2NO4

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The complete graph of human genome was studied by ______...?

(A) PCR
(B) HGP (Human Genome project)

(C) Medicine
(D) Soma-clonal

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Carbon dating is used for the estimation of the age of ____...?

(A) Rocks
(B) Fossils

(C) Soil
(D) Water

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LED stands for _____...?

(A) Light Emitting Diode
(B) Laser Emitting Device

(C) Low Energy Device
(D) Liquid Emitting Display

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Which is the best indication that a chemical reaction has taken place...?

(A) Blue powder turns water blue
(B) Metal budding when placed in an unknown liquid

(C) A white substance dissolving in water
(D) None

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A form of energy which flows from a region of high temperature to a region of low temperature is known as...?

(A) Heat
(B) Light

(C) Sound
(D) Work

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Who discovered that the earth was not the center of the universe...?

(A) Aristotle
(B) Nicolaus Copernicus

(C) Sir Isac Newton
(D) None

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An atom is_____________...?

(A) smallest indivisible particle in an element
(B) smallest particle of an element which can undergo a chemical reaction

(C) building block of an element
(D) always smaller than molecule

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A type of cancer that affects the blood, bone marrow and lymphatic system called...?

(A) Lymphoma
(B) Carcinoma

(C) Leukemia
(D) Sarcoma

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Digestion of food is completed in the __________...?

(A) small intestine
(B) large intestine

(C) stomach
(D) Liver

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