Tags Class 12th

Class 12th

Get insights from 12k questions on Class 12th, answered by students, alumni, and experts. You may also ask and answer any question you like about Class 12th

Follow Ask Question

12k

Questions

Discussions

Active Users

Followers

New answer posted

2 months ago

Class 12th Chemistry Electrochemistry

Limiting molar conductivity of HAcis equal to

0 Follower 1 View

alok kumar singh

Contributor-Level 10

0 0

New answer posted

2 months ago

Class 12th Chemistry Solutions

At 25°C, the highest osmotic pressure is exhibited by 0.1 M solution of

0 Follower 2 Views

alok kumar singh

Contributor-Level 10

AICI₃ has greater number of ions, therefore it shows the highest osmotic pressure.

0 0

New answer posted

2 months ago

Class 12th Chemistry

The compound which will react fastest by SN2 mechanism is

0 Follower 2 Views

alok kumar singh

Contributor-Level 10

Ph—CH₂-Br will react the fastest by S_N2 mechanism.

0 0

New answer posted

2 months ago

Class 12th Chemistry

When copper is reacted with dilute HNO₃, the gaseous product(s) obtained is/are

0 Follower 1 View

alok kumar singh

Contributor-Level 10

0 0

New answer posted

2 months ago

Class 12th Chemistry Electrochemistry

The volume strength of 0.75 M H₂O₂ solution is

0 Follower 2 Views

alok kumar singh

Contributor-Level 10

0 0

New answer posted

2 months ago

Class 12th Chemistry

Monomer of neoprene polymer is

0 Follower 1 View

alok kumar singh

Contributor-Level 10

Monomer of neoprene polymer is

3-Chloro-1, 3-butadiene

0 0

New answer posted

2 months ago

Class 12th Chemistry Solutions

Osmotic pressure at 273 K is 7 * 10⁵ Pa, then what will be the value of x, if its osmotic pressure at 283 K is x * 10⁴ Pa?

0 Follower 1 View

alok kumar singh

Contributor-Level 10

$π_{1} = i C R T_{1}$

$π_{2} = i C R T_{2}$

$\frac{π_{1}}{T_{1}} = \frac{π_{2}}{T_{2}}$

$π_{2} = \frac{π_{1} * T_{2}}{T_{1}}$

$= \frac{7 * 1 0^{5} * 283}{273}$

= 7.256 * 10⁵ * Pa

= 72.56 * 10⁴ Pa

p₂ = x * 10⁴

x = 72.56 » 73

0 0

New answer posted

2 months ago

Class 12th Chemistry Electrochemistry

Through a ZnSO₄ solution, 0.015 A current was passed for 15 minutes. What is the mass of Zn deposited? (in mg)

(Atomic weight of Zn = 65.4 )

0 Follower 2 Views

alok kumar singh

Contributor-Level 10

Charge passed = It

= 0.015 * 15 * 60 C

Moles of electrons passed $= \frac{0.015 * 15 * 60}{96500}$

Moles of Zn deposited = $\frac{1}{2} * \frac{0.015 * 15 * 60}{96500}$

= 0.00007

Mass of Zn deposited = 0.00007 * 65.4 g = 4.58mg

0 0

New answer posted

2 months ago

Class 12th Chemistry

How many of the following compound contain sulphur atom?

Pyrrole, Furan, Thiophene, Cysteine, Tyrosine, Pyridine

0 Follower 2 Views

alok kumar singh

Contributor-Level 10

0 0

New answer posted

2 months ago

Class 12th CBSE 12th

What is the weightage of Class 12 Chapter 1 Solutions in CBSE and other competitive exams?

0 Follower 14 Views

nitesh singh

Contributor-Level 10

After the 2023-24 revised CBSE syllabus, many chapters have been removed, and in some chapters syllabus is reduced. As per the latest CBSE exam pattern 2025-26, the Chapter 1 Solutions will be asked for 5-7 marks in the Class 12 Chemistry CBSE board exams.

For other competitive exams, the Solutions chapter has a medium weightage in the NEET exam. In the NEET exam, 1-2 questions are frequently asked based on the concept of moderate-level numerical.

Physical Chemistry holds over 30% weightage in the chemistry section in the JEE Mains exam. The solutions chapter is considered a part of physical chemistry. You can expect 1 question fo

...more

0 0

Get authentic answers from experts, students and alumni that you won't find anywhere else

On Shiksha, get access to

66k Colleges
1.2k Exams
680k Reviews
1800k Answers

Community GuidelinesUser Points System

QuestionsDiscussionsTags

Need guidance on career and education? Ask our experts

Your Question

Class 12th

Questions

Discussions

Active Users

Followers

All

Discussions

Unanswered Questions

Share Your College Life Experience