Chemical Name of Dry Ice...? Mcqs

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Chemical Name of Dry Ice...?

(A) Solid Carbon Dioxide
(B) Calcium Carbon

(C) A&B
(D) Sodium Oxide

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In the periodic table, rows is considered to be a ____...?

(A) Periods
(B) Groups

(C) Zigzag
(D) Diagonal

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Which statement is true about the magnetic poles...?

(A) Unlike poles repel
(B) Like poles attract

(C) Magnetic poles do not effect each other
(D) A single magnetic pole does not exist

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Sun is moving around the centre of the galaxy at a velocity of _______ km/s...?

(A) 205
(B) 210

(C) 215
(D) 220

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The additional circular small piece of DNA in bacterial cell is called ____...?

(A) Plasmids
(B) Replica

(C) Template
(D) Clone

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Deficiency of Iodine causes:____________...?

(A) Anemia
(B) Scurvy

(C) Goiter
(D) Rickets

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During a total solar eclipse there is most likely to be_____________...?

(A) A decrease in the rate of photosynthesis
(B) An increase in the rate of photosynthesis

(C) A decrease in the rate of respiration
(D) No effect on either photosynthesis or respiration

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Granite is a____________...?

(A) Metamorphic rock
(B) Igneous rock

(C) Sedimentry rock
(D) None of these

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Metals are good conductors of electricity because they have free _____...?

(A) Electrons
(B) Protons

(C) Neutrons
(D) Photons

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An ordinary mobile phone communicate by using___________...?

(A) Sound waves
(B) Infrared waves

(C) UV waves
(D) Radio waves

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