NEET (2024 Updated)-National Eligibility cum Entrance Test (Medical) Chemistry: Questions 482 - 488 of 3111

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Question 482

Question MCQ▾

The geometrical form consisting only of a regular array of points in space is called?

Choices

Choice (4)Response

a.

Lattice

b.

Cube

c.

Unit cell

d.

Crystal

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Question 483

Question MCQ▾

If the distance between sodium ions and chloride ions in NaCl crystal is 265 pm, then edge length of the unit cell will be?

Choices

Choice (4)Response

a.

530 pm

b.

132.5 pm

c.

265 pm

d.

765 pm

Edit

Question 484

Question MCQ▾

The dissolution of ionic crystal in a polar solvent depends on?

Choices

Choice (4)Response

a.

Temperature

b.

Dielectric constant

c.

Hydration energies

d.

None of the above

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Question 485

Question MCQ▾

In Bragg՚s equation for diffraction of X-rays, n represents?

Choices

Choice (4)Response

a.

Number of mole

b.

Avagadro՚s number

c.

Order of reflection

d.

Quantum number

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Question 486

Question MCQ▾

Which of the following formula is used to determine the density of unit cell?

Choices

Choice (4)Response

a.

b.

c.

d.

None of the above

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Question 487

Question MCQ▾

In a solid lattice, the cation has left a lattice site and is located at an interstitial position. The lattice defect is?

Choices

Choice (4)Response

a.

Vacancy defect

b.

Schottky defect

c.

Interstitial defect

d.

Frenkel defect

Edit

Question 488

Question MCQ▾

Which of the following metal oxides shows anti-ferromagnetic properties?

Choices

Choice (4)Response

a.

NiO

b.

CrO2

c.

MnO2

d.

Both a. and c. are correct

Edit