CBSE Class 11-science Questions and Answers

If you are looking for Class 11 Science online study materials, you’ve come to the right place. On TopperLearning, you’ll find quality e-learning materials for subjects such as Physics, Chemistry, Biology, Mathematics, and Hindi. These study materials include sample papers, MIQs, textbook solutions, video lessons and more.

Understand the course structure and exam paper pattern by going through the latest CBSE Class 11 Science syllabus. With access to the accurate list of syllabus topics, you’ll be able to create an appropriate study plan for your exams. Revision is key to remembering the key concepts learned in class. Get free access to the important revision notes for CBSE Class 11 science prepared by TopperLearning’s experts. Also, improve your Hindi writing skills with textbook solutions or understand concepts in Physics with our conceptual videos.

You just need to access your TopperLearning dashboard for utilising our compiled CBSE Class 11 Science study resources such as sample papers, NCERT solutions, syllabus, videos, revision notes and online mock tests. Study complex topics as per your convenience with our 24/7 access to CBSE Class 11 Science resources and score well in your CBSE final exams for Class 11.

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CBSE XI Science - Physics

a stone is tied to one end of a string and rotating in a vertical circle. what is the difference in tension of the lowest and highest point of the vertical circle

Asked by deekshikap2004 | 23rd Jan, 2021, 10:14: AM

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CBSE XI Science - Chemistry

Specify the oxidizing and reducing agent balance in basicmedium: (5)MnO4-(aq) + I-(aq)→ IO3-(aq)+ MnO2 (aq)(Balance by ion electron method) (Show steps).

Asked by manvighya.singh63 | 22nd Jan, 2021, 06:11: PM

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CBSE XI Science - Chemistry

Halogens are deactivators but ortho and para directors. Justify with suitable examples

Asked by dubeyanubhav65 | 18th Jan, 2021, 09:52: PM

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CBSE XI Science - Chemistry

__ group element has low ionization enthalpy. Option: A)2 B)14 C)16 D)18

Asked by jigneshd5127 | 18th Jan, 2021, 09:16: AM

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CBSE XI Science - Biology

which book most impressed the opinion of taxonomists?

Asked by gurmeetkaurkhalsa24 | 17th Jan, 2021, 05:30: PM

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CBSE XI Science - Physics

sir please give this attached photo question answer

Asked by jaashisha65 | 16th Jan, 2021, 06:35: PM

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CBSE XI Science - Chemistry

The basic character of Oxides and Hydroxides of Alkali and alkaline earth metal

Asked by mrassam2711 | 15th Jan, 2021, 11:54: PM

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CBSE XI Science - Biology

difference b/w redifferentiation and dediffernetiation?

Asked by tinujain2000 | 15th Jan, 2021, 09:47: PM

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CBSE XI Science - Mathematics

find the slope of line making inclination 90°

Asked by aschikkodi1001 | 13th Jan, 2021, 06:44: PM

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CBSE XI Science - Physics

hello mam please clarify this sum How can the resolving power of a telescope be increased? A telescope has an objective of focal length 50 cm and an eyepiece of focal length 5 cm. The least distance of distinct vision is 25 cms. The telescope is focused for distinct vision on a scale 200 cms away from the objective. Calculate (i) the separation between objective and eyepiece (ii) the magnification produced.

Asked by seeni2005 | 12th Jan, 2021, 09:32: PM

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