Which of the following equations represents a decomposition reaction...? Mcqs

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Which of the following equations represents a decomposition reaction...?

(A) A+B → AB
(B) A → AB

(C) AB → AC
(D) AB → A+B

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What is unit of conductivity...?

(A) Ohm
(B) Watt

(C) mho
(D) None of these

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During the process, more water will also evaporate and convert to a gaseous state of water called the...?

(A) Water Liquid
(B) Water Solid

(C) Water Vapour
(D) Water Ice

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What is the chemical formula for Sulfuric acid...?

(A) C2H6O
(B) CaSO4

(C) C2H4O2
(D) H2SO4

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______________ is used for measuring velocity...?

(A) Speedometer
(B) Anemometer

(C) Odometer
(D) Hygrometer

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What is caused by the rotation of the Earth...?

(A) Seasons
(B) Day and Night

(C) Tides
(D) Earthquakes

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Ultrasound has several uses in medicine and industry. Which one has use of ultrasound...?

(A) Absorption
(B) Pre-natal scanning

(C) Dispersion
(D) Measuring humidity of air

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Which from the following is NOT a conductor...?

(A) Aluminium
(B) Gold

(C) Graphite
(D) All are conductors

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Evaporation from ice and snow is known as___________...?

(A) evaporation
(B) sublimation

(C) hydrogenation
(D) insolation

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Insects group of animals is characterized by...?

(A) Jointed legs & wings
(B) Segmented body & blood feeding

(C) Egg-laying & nectar feeding
(D) All of these

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