The process of vaporizing a solid substance and condensing the vapours to form the solid directly is known as...? Mcqs

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The process of vaporizing a solid substance and condensing the vapours to form the solid directly is known as...?

(A) Distillation
(B) Sublimation

(C) Filtration
(D) Crystallization

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How many countries are signatories of NASA’s Artemis Accords as of May 2024...?

(A) 29
(B) 30

(C) 40
(D) None of These

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Elements which have same number of protons but different number of neutrons are called as _________ ...?

(A) Isotopes
(B) Isomers

(C) Allotropes
(D) Allomers

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In four kingdom classification, kingdom Metaphyta includes all of the following except...?

(A) Algae
(B) Angiosperm

(C) Gymnosperm
(D) Bryophyta

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Steering of a car involves...?

(A) A single force
(B) Two forces acting in the same direction

(C) Two forces acting along different lines and in opposite direction.
(D) A pair of forces acting along the same line and in opposite direction

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The frequency of ultrasound wave is typically...?

(A) Above 20 kHz
(B) Above 20,000 kHz

(C) Below 20 kHz
(D) Below 02 kHz

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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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The gases used in different types of welding would include ___________...?

(A) Oxygen and hydrogen
(B) Oxygen, hydrogen, acetylene and nitrogen

(C) Oxygen, acetylene and argon
(D) Oxygen and acetylene

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A/an ________ provides a complete path for the current to flow through....?

(A) Open Circuit
(B) Closed Circuit

(C) Series Circuit
(D) Short Circuit

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The sky drivers use parachutes to easily descend towards the earth because of it:...?

(A) Increases air resistance
(B) Decreases air resistance

(C) Decreases air friction
(D) Speeds up

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