Rusting of Iron involves_______________...? Mcqs

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Rusting of Iron involves_______________...?

(A) Reduction
(B) Oxidation

(C) Decomposition
(D) Displacement

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The Earth takes ______ to revolve around the sun....?

(A) 365 days and 4 hours
(B) 365 days and 6 hours

(C) 365 days and 8 hours
(D) 365 days and 10 hours

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A fixed temperature at which a pure liquid boils is called ______...?

(A) Melting point
(B) Freezing point

(C) Boiling point
(D) Both 'a' and 'b'

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When a French bean germinates in soil, a hook like structure emerges that structure is called...?

(A) Hypogeal
(B) Hypocotyl

(C) Micropyle
(D) Testa

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Jupiter has ________ known moons....?

(A) 62
(B) 73

(C) 79
(D) 53

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The process of separation of an insoluble solid from a liquid by passing it through filter paper is called...?

(A) Filtration
(B) Decantation

(C) Sedimentation
(D) Centrifugation

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RBCs are also called as_______...?

(A) Leucocytes
(B) Erythrocytes

(C) Nucleotides
(D) AOT

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Disease causing microorganism are referred to an:...?

(A) Viruses
(B) Pathogens

(C) Coliform Bacteria
(D) All of these

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Isotopes of an element have the same number of _______...?

(A) Neutrons
(B) Protons

(C) Electrons
(D) Beta rays

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Lux is a unit of __________...?

(A) Luminous Flux
(B) Illumination

(C) Luminous Intensity
(D) Focus

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