Exambodh - Practice Aptitude, Reasoning & GK Questions
Play Quiz
SSC CGL
hardQ. No. 14892-which-type-of-crystal-defect-increases-electrical-conductivity

Which type of crystal defect increases electrical conductivity?

Last Updated:

This SSC CGL Chemistry question asks: “Which type of crystal defect increases electrical conductivity?” The correct answer is Metal excess defect. Metal excess defect creates extra electrons or extra cations in interstitial sites increasing electrical conductivity. Option A (“Schottky defect”) is incorrect because it does not satisfy the chemical formula, reaction, periodic trend, numerical relation, oxidation state or definition required by the question. Option B (“Frenkel defect”) is incorrect because it does not satisfy the chemical formula, reaction, periodic trend, numerical relation, oxidation state or definition required by the question. Option D (“Impurity defect”) is incorrect because it does not satisfy the chemical formula, reaction, periodic trend, numerical relation, oxidation state or definition required by the question.

ASchottky defect
BFrenkel defect
CMetal excess defect
DImpurity defect
Correct Answer: Metal excess defectYour Answer: C

Explanation

ns in interstitial sites increasing electrical conductivity. Option A (“Schottky defect”) is incorrect because it does not satisfy the chemical formula, reaction, periodic trend, numerical relation, oxidation state or definition required by the question. Option B (“Frenkel defect”) is incorrect because it does not satisfy the chemical formula, reaction, periodic trend, numerical relation, oxidation state or definition required by the question. Option D (“Impurity defect”) is incorrect because it does not satisfy the chemical formula, reaction, periodic trend, numerical relation, oxidation state or definition required by the question. The answer field, correct index and explanation therefore all identify Metal excess defect. Metal excess defect creates extra electrons or extra cations in interstitial sites increasing electrical conductivity.

Related Questions

View All
14964-which-metal-is-the-best-conductor-of-electricityWhich metal is the best conductor of electricity?14963-which-of-the-following-is-the-correct-iupac-name-of-ch3-ch-ch-ch3Which of the following is the correct IUPAC name of CH3-CH=CH-CH3?14962-what-is-the-overall-cell-reaction-in-a-daniell-cellWhat is the overall cell reaction in a Daniell cell?
Previous QuestionNext Question

Test your SSC CGL Chemistry knowledge

Start Topic Test

FAQ

SSC CGL Chemistry FAQs

Common questions and clear answers for this topic.

How many chemistry questions typically appear in the SSC CGL exam?

Chemistry usually contributes a handful of questions within the General Awareness section, generally covering basic concepts rather than calculation-heavy problems.

Which chemistry topics are most important for SSC CGL preparation?

Atomic structure, periodic table trends, acids-bases-salts, metals and non-metals, and carbon compounds are the areas that appear most consistently across past papers.

Is NCERT chemistry enough to prepare for SSC CGL?

NCERT textbooks from classes 9 and 10 cover most of the conceptual base needed, though supplementing with general knowledge about everyday chemical compounds helps too.

What is the best way to remember chemical reactions and formulas for SSC CGL?

Linking reactions to real-world examples, like rusting or antacids, makes them easier to recall than memorizing formulas in isolation.

Does the SSC CGL chemistry syllabus overlap with the school board syllabus?

Yes, a large part of the syllabus mirrors class 9 and 10 science, making school-level revision a practical starting point.

Same Topic MCQs

View All
Which metal is the best conductor of electricity?Which of the following is the correct IUPAC name of CH3-CH=CH-CH3?What is the overall cell reaction in a Daniell cell?