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 |
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 |
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 |
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 |
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 |
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 |
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 |