Explore topic-wise InterviewSolutions in .

This section includes InterviewSolutions, each offering curated multiple-choice questions to sharpen your knowledge and support exam preparation. Choose a topic below to get started.

101.

Which of the following consists of either atoms or molecules formed by non polar covalent bonds?(a) Non polar molecular solid(b) Metallic solid(c) Polar molecular solid(d) Ionic solidThis question was addressed to me in an online quiz.This intriguing question originated from Classification of Crystalline Solids in portion Solid State of Chemistry – Class 12

Answer»

Correct option is (a) Non polar molecular solid

To explain I would say: Non polar molecular solids CONSISTS of either of the atoms or molecules formed by non polar COVALENT BONDS. Metallic solids and ionic solids CONSIST of free mobile electrons and IONS respectively. Whereas polar molecular solids are formed by polar covalent bonds.
Discussion
102.

Which type of solid structure melts at a definite, sharp melting point?(a) All types of solids(b) No type of solid(c) Amorphous solids(d) Crystalline solidsI have been asked this question during an interview.Query is from Solid State Characteristics in section Solid State of Chemistry – Class 12

Answer»

Correct option is (d) Crystalline solids

Easiest explanation: Crystalline solids have a perfectly ORDERED structure which collapses immediately at a specific TEMPERATURE. Amorphous solids melt over a range of TEMPERATURES, not ONE specific VALUE.
Discussion
103.

The points which shows the position of atoms in crystal are called as _________(a) crystal lattice(b) crystal parameters(c) bravais lattice(d) lattice pointI had been asked this question during an interview for a job.Enquiry is from Amorphous and Crystalline Solids in division Solid State of Chemistry – Class 12

Answer»

Correct ANSWER is (d) lattice point

The best EXPLANATION: The point at which the atoms MAY be PRESENT on the unit cell is termed as lattice point. It shows the position of atoms in crystal.
Discussion
104.

Silicon is found in nature in the forms of ________(a) body-centered cubic structure(b) hexagonal-closed packed structure(c) network solid(d) face-centered cubic structureI have been asked this question in homework.My doubt stems from Amorphous and Crystalline Solids in section Solid State of Chemistry – Class 12

Answer»

The CORRECT choice is (c) NETWORK SOLID

The explanation is: Silicon due to its catenation property form network solid. Catenation is the ABILITY of an atom to form bonds with other atoms of the same element. The compounds of silicon are reactive and not stable.
Discussion