Class 12th
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New answer posted
a year ago
Contributor-Level 10
This is a Long Answer Type Questions as classified in NCERT Exemplar
New answer posted
a year agoContributor-Level 10
This is a Long Answer Type Questions as classified in NCERT Exemplar
New answer posted
a year agoContributor-Level 10
Some of the most frequently tested topics for high scores are finding the adjoint and inverse of a matrix, solving equations using Cramer's Rule, expansion using cofactors, and properties of determinants. If students practice questions based on these topics, they can get high scores in the CBSE Board exam and entrance exams.
New answer posted
a year agoContributor-Level 10
In finding inverses of matrices, solving systems of linear equations, and understanding matrix transformations, the determinants play a crucial role. The Determinants concept is widely used in physics, engineering, computer Science and competitive exams like JEE. Understanding determinants is important for higher mathematical studies.
New answer posted
a year agoContributor-Level 10
The exemplar is beyond the NCERT textbook as it is conceptually more deep and challenging than the NCERT textbook exercises. These MCQs, LA, and SA questions help students improve their logical reasoning and help them prepare for competitive exams. It tests students on higher-order and application-based questions and promotes analytical thinking.
New answer posted
a year ago
Contributor-Level 10
This is a Matching Type Questions as classified in NCERT Exemplar
Ans: (i) — (e); (ii) — (d); (iii) — (a); (iv) — (b); (v) — (f); (vi) — (c)
New answer posted
a year ago
Contributor-Level 10
This is a Matching Type Questions as classified in NCERT Exemplar
Ans: (i) → (c); (ii) → (d); (iii) → (a); (iv) → (b).
New answer posted
a year ago
Contributor-Level 10
This is a Matching Type Questions as classified in NCERT Exemplar
Ans: (i) → (b); (ii) → (e); (iii) → (d); (iv) → (a); (v) → (c)
New answer posted
a year ago
Contributor-Level 10
This is a Matching Type Questions as classified in NCERT Exemplar
Ans: (i) → (d); (ii) → (e); (iii) → (a); (iv) → (b); (v) → (c)
New answer posted
a year agoContributor-Level 10
This is a Assertion and Reason Type Questions as classified in NCERT Exemplar
Ans: D
The silver mirror test can be used to determine Tollen's. [Ag (NH3)2] + OH - . Only aldehydes, not ketones, react with Tollen's reagent to create silver.
A silver mirror test is not given with this affirmative test.
The carbonyl group is present in both aldehyde and ketone.
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