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

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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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Sunsets on Mars are _________...?

(A) Red
(B) Blue

(C) Yellow
(D) Orange

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The primary function of the feathers in birds is to _________...?

(A) Provide insulation for preserving body heat
(B) Provide striking surface to the wings for flying

(C) Make the body surface waterproof
(D) impart coloration for species as well as sex recognition

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Which of the following statements is incorrect about Cycas...?

(A) Cycas plants are gymnosperms.
(B) Cycas leaves are pinnately compound.

(C) Cycas have vessel elements in their xylem.
(D) Cycas produce seeds but do not form flowers.

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Pregnancy time period of “mice” is ___________...?

(A) 2 weeks
(B) 2.5 weeks

(C) 3 weeks
(D) 4 weeks

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IC stands for _____...?

(A) Insulated Cable
(B) Intelligent Chip

(C) Integrated Circuit
(D) Internal Component

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A solution which can dissolve more solute at given temperature is called...?

(A) Standard Solution
(B) Super Saturated solution

(C) Unsaturated Solution
(D) Saturated Solution

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The energy stored in a dam is___________...?

(A) Kinetic energy
(B) Electrical energy

(C) Potential energy
(D) None of these

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Fats are solids at ______...?

(A) Ordinary room temperature
(B) High temperature

(C) Higher than 50°C temperature
(D) N.O.T

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Magnifying power of a simple microscope can be increased by ...?

(A) increasing focal length of the lens
(B) Decreasing focal length of the lens

(C) Lens of large aperture
(D) lens of short aperture

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