The pH scale is a measure of the acidity or alkalinity of a solution, and it ranges between ____...? Mcqs

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The pH scale is a measure of the acidity or alkalinity of a solution, and it ranges between ____...?

(A) 1 - 10
(B) 1 - 14

(C) 5 - 15
(D) 0 - 12

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The property decides the order of elements in the modern periodic table is ____...?

(A) The number of neutrons in the nucleus
(B) The number of electrons in the outermost shell

(C) The number of protons (atomic number) in the nucleus
(D) The atomic mass of the element

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LPG consists of mainly:___________...?

(A) Methane, Ethane and Hexane
(B) Ethane, Hexane and Nonane

(C) Methane, Hexane and Nonane
(D) Methane, Butane and Propane

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Colour of the plants is green due to the presence of _________....?

(A) Carbon dioxide
(B) Chlorophyll

(C) Urea
(D) Oxygen

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Laughing gas has chemical composition of following two elements ...?

(A) Nitrogen + Hydrogen
(B) Nitrogen + Carbon

(C) Nitrogen + Oxygen
(D) Oxygen + Carbon

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Who invented the first battery...?

(A) Alessandro volta
(B) Tim Berner

(C) Rob Stothard
(D) Georges Leclanche

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Which ocean is called “Ring of Fire”...?

(A) Indian Ocean
(B) Pacific Ocean

(C) Atlantic Ocean
(D) Antarctic Ocean

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A method which is used to separate coloured chemicals or substances, especially dyes is known as...?

(A) Filtration
(B) Sublimation

(C) Paper chromatography
(D) Distillation

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The electronic that have been knocked out of the outer most shell of an atom are known as...?

(A) Free Electrons
(B) Valence Electrons

(C) Core Electrons
(D) Conductors

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A quantity that can be measured is called ____...?

(A) Physical Quantity
(B) Physical Constant

(C) Mathematical Quantity
(D) Standard Quantity

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