States of Matter-Solid State [NEET (2024 Updated)-National Eligibility cum Entrance Test (Medical) Chemistry]: Questions 8 - 13 of 119
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Question 8
Question MCQ▾
Which of the following compound are used in memory units of computers?
Choices
Choice (4) | Response | |
---|---|---|
a. | Zinc sulphides | |
b. | Potassium bromide | |
c. | Ferrites | |
d. | Sodium oxides |
Question 9
Question MCQ▾
Which of the following statements is not true about ionic crystals?
Choices
Choice (4) | Response | |
---|---|---|
a. | These are crystalline solids at room temperature | |
b. | Soluble in polar solvents | |
c. | These are good conductors in solid state | |
d. | These are quite hard in nature |
Question 10
Question MCQ▾
At room temperature, sodium crystallizes in body centered cubic lattice with Calculate the theoretical density of sodium?
Choices
Choice (4) | Response | |
---|---|---|
a. | 1.002 g/cm3 | |
b. | 2.004 g/cm3 | |
c. | 3.5 g/cm3 | |
d. | None of the above |
Question 11
Question MCQ▾
Which of the following defect causes decrease in the density of a crystal?
Choices
Choice (4) | Response | |
---|---|---|
a. | Shottky | |
b. | Interstitial | |
c. | F-centered | |
d. | Frenkel |
Question 12
Question MCQ▾
Which of the following compound is also known as Berthollide compound?
Choices
Choice (4) | Response | |
---|---|---|
a. | Zinc oxide | |
b. | Vanadium oxide | |
c. | Ferrous oxide | |
d. | All a., b. and c. are correct |
Question 13
Question MCQ▾
What is the shape of a crystal system in which
Choices
Choice (4) | Response | |
---|---|---|
a. | Triclinic | |
b. | Hexagonal | |
c. | Tetragonal | |
d. | Rhombohedra |