Which of the following would be most useful in testing if a substance is either an acid or a base...? Mcqs

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Which of the following would be most useful in testing if a substance is either an acid or a base...?

(A) pH indicator strips
(B) Acid-base indicator

(C) Litmus paper
(D) Filter paper

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The list that shows electromagnetic waves in order of an increasing wavelength is _____...?

(A) Microwaves, X-rays, Gamma-rays
(B) Microwaves, Gamma-rays, X-rays

(C) X-rays, gamma-rays, Microwaves
(D) Gamma-rays, X-rays, Microwaves

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Keeping oneself clean is called...?

(A) Sanitation
(B) Hygiene

(C) Cleanliness
(D) Grooming

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The simplest kind of matter which cannot be further split up into simpler substances by chemical reactions is called...?

(A) Compound
(B) Atom

(C) Molecule
(D) Element

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Which statement is incorrect about suspension...?

(A) The suspension is heterogeneous mixture
(B) In a suspension the particles of solute are dispersed

(C) The colour and appearance are not same in every part of the suspension
(D) The suspension is transparent and clear

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Sensory hair-cells are present in ______...?

(A) Retina
(B) Cochlea

(C) Skin
(D) Nose

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Name the famous book of Ibn-Sina in which he discussed human physiology and medicine ...?

(A) Al-Qanun
(B) Al-Masudi

(C) New Renaissance
(D) Tadhkira

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At which temperature does bacteria die...?

(A) 102F
(B) 106F

(C) 149F
(D) None of These

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Oxygen belongs to group VIA so number of electrons in its valence shell are _____...?

(A) 3
(B) 4

(C) 5
(D) 6

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In NaCl crystal lattice each Na ion is surrounded by ______...?

(A) 6 Cl^- ions
(B) 6 Na^+ ions

(C) 8 Cl^- ions
(D) 12 Cl^- ions

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