NSOClass 12

NSO Mock · Grade 12 June 2026

A full-length NSO mock test for Class 12 with 60 questions in 60 minutes, set on the SOF NSO pattern. Take it online under real exam timing and get your score and all-India rank the moment you submit.

Exam pattern

Section	Questions
Logical Reasoning	15
Physics	12
Chemistry	12
Biology	11
Achievers Section	10
Total (60 minutes)	60

Sample questions from this exam

A preview of 3 of the 60 questions. Answers are revealed when you take the exam.

Sample 1, Logical Reasoning
An electron enters a region of uniform magnetic field $\vec{B}$ directed along the positive z-axis, with a velocity $\vec{v}$ directed along the positive x-axis. What is the direction of the magnetic force acting on the electron at that instant?
- A
  Positive z-axis
- B
  Negative z-axis
- C
  Positive x-axis
- D
  Negative y-axis
Sample 2, Physics
An electron enters a uniform magnetic field $B$ with a velocity $v$ perpendicular to the field. What is the time period of the circular motion of the electron?
- A
  $\frac{2\pi m}{eB}$
- B
  $\frac{2\pi e}{mB}$
- C
  $\frac{2\pi mB}{e}$
- D
  $\frac{eB}{2\pi m}$
Sample 3, Chemistry
The reaction of an organic acid with an alcohol in the presence of an acid catalyst to produce an ester is known as:
- A
  Saponification
- B
  Esterification
- C
  Hydrogenation
- D
  Fermentation

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What the NSO Class 12 paper covers

PhysicsChemistryBiologyEnvironmental ScienceLogical ReasoningScientific Reasoning

Frequently asked

How long is the NSO Mock · Grade 12 June 2026?

60 questions in 60 minutes, for Class 12, following the SOF NSO (National Science Olympiad) pattern.

Is there negative marking?

No. Each correct answer earns marks and wrong answers cost nothing, just like the SOF Level 1 exams.

How do I take this mock exam?

Create a free account. Every new account gets 1 free exam credit, which is enough to take this full exam. After that, each full exam uses 1 credit, and credit packs are on the pricing page.

Do I get a score, rank and solutions?

Yes. Your score is calculated the moment you submit, with your rank and percentile among OlympiadCloud students who took this exam, and detailed solutions for every question.

NSO mock exams for other classes

Ready for the real thing?

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