The Correct Statement In The Following Is

Why Kaysons ?

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Question

The correct statement in the following is

easy

Solution

Correct option is

The unit cell having crystal parameters, a = b ≠ c, α = β = 90⁰, γ = 120⁰ is hexagonal

A crystal system is hexagonal if its unit cell having a = b ≠ c axial ratio and α = β = 90⁰, γ = 120⁰, axial angles.

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SIMILAR QUESTIONS

Q1

Potassium fluoride has NaCl type structure. What is the distance between K⁺ and F^- ions if cell edge is a cm?

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Q2

Which defect causes decreases in the density of crystal?

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Q3

The correct statement regarding F – centre is

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Q4

Schottky defect in crystals is observed when

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Q5

Frenkel defect is caused due to

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Q6

An example of a non – stoichiometric compound is

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Q7

A pure crystalline substance, on being heated gradually, first forms a turbid looking liquid and then the turbidity completely disappears. This behavior is the characteristic of substances forming.

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Q8

Amorphous substances show

(i) short and long range order

(ii) short range order

(iii) long range order

(iv) have no sharp melting point

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Q9

The solid NaCl is a bad conductor of electricity since

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Q10

The crystal system of a compound with unit cell dimensions,

a = 0.387, b = 0.387 and c = 0.504 nm, and α = β = 90⁰ and γ = 120⁰ is

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