First antibiotic was extracted from a _________...? Mcqs

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First antibiotic was extracted from a _________...?

(A) Bacteria
(B) virus

(C) Fungus
(D) None of these

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Which statement is/are correct about particles in gases...?

(A) Particles are widely spread out
(B) Particles are not in regular pattern and Particles have large empty spaces between them

(C) Particles are widely spread out
(D) All of these

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Dioptre is used to measure...?

(A) optical power
(B) luminous intensity

(C) power
(D) distance of heavenly bodies

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The sun has a __________ year solar cycle during which its activity increases and decreases....?

(A) 10
(B) 11

(C) 12
(D) 13

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Pascal’s Principle is widely used in a _____...?

(A) Electrical System
(B) Hydraulic System

(C) Pneumatic System
(D) Mechanical System

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Substances that react with both acids and bases are called...?

(A) Conjugate acids
(B) Conjugate bases

(C) Amphoteric substances
(D) Buffers

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All accurately known digits and first doubtful digit in an expression are known as...?

(A) Non-significant figures
(B) Significant figures

(C) Estimated figures
(D) Crossed figures

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Most crucial step in natural growth in nutrient cycle is...?

(A) Nutrient cycle
(B) water cycle

(C) Nitrogen cycle
(D) None of these

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Earth is divided into following three layers...?

(A) a. Crust, Mountains, Oceans
(B) b. Crust, Mantle, Trenches

(C) c. Trenches, Mountains, Core
(D) d. Crust, Mantel, Core

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How many states of matters are there...?

(A) 1
(B) 2

(C) 3
(D) 4

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