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Basic Science MCQs for CET 12th Level

Practice 20 free basic science multiple choice questions for CET 12th Level exam. Instant answers with explanations in Hindi and English.

Strengthen your Basic Science knowledge for CET 12th Level with our free curated MCQ set. Every question follows real Rajasthan exam patterns. Switch between Hindi and English, and practice daily to build confidence before the exam.

CET 12th Level — Basic Science

20 Questions • Instant results & explanations • Hindi & English

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Question 1 of 20

Calculate the electricity consumption in units (kWh) if five fans of 100 watts each run for 8 hours daily for a period of 30 days.

Question 2 of 20

Which branch of science would study the 'interaction between Matter and Energy'?

Question 3 of 20

Which of the following describes the chemical state of 'Dead Burnt Plaster'?

Question 4 of 20

What is formed when two or more atoms form chemical bonds with each other to create a single structural unit?

Question 5 of 20

What happens chemically when the sodium or potassium salts of carboxylic acids are exposed to hard water?

Question 6 of 20

In the context of electrical consumption, 1000 Watt-hour is equal to:

Question 7 of 20

What is the scientific name of the Great Indian Bustard, which is also the state bird of Rajasthan?

Question 8 of 20

Electric charge is inherently quantized, meaning it can only exist as integral multiples of a basic elementary charge (e). What is the absolute numerical value of this elementary charge carried by a single electron?

Question 9 of 20

Consider the following statements regarding the chemical nature of cleaning agents: I. Soaps are sodium salts of sulfonic acids or alkyl sulfates. II. Detergents are sodium or potassium salts of carboxylic acids. Which of the statements given above is/are correct?

Question 10 of 20

Which of the following physiological changes is a primary cause of Myopia?

Question 11 of 20

Natural Science is broadly divided into two main sub-branches. Identify them.

Question 12 of 20

Which alloy is used for making aircraft bodies and pressure cookers?

Question 13 of 20

A typical 2-marker question in the General Science Mains paper often requires candidates to draw distinct comparisons. According to the standard question formats, highlighting the differences between which two concepts is a classic example of this?

Question 14 of 20

The primary aim of developing a 'Scientific Temper' in society is to:

Question 15 of 20

Assertion (A): Galvanization successfully prevents the rusting of iron because zinc forms an impenetrable barrier and never reacts with oxygen. Reason (R): Zinc is placed above iron in the electrochemical reactivity series. Select the accurate statement:

Question 16 of 20

Regarding basic buffers, which of the following statements is categorically correct?

Question 17 of 20

Identify the lever where the 'Mechanical Advantage' can be > 1, < 1, or = 1 depending on the position of the fulcrum.

Question 18 of 20

Which specific metallic element provides the crucial sacrificial anodic protection in the industrial process of Galvanization?

Question 19 of 20

Why do isotopes of the same element exhibit identical chemical properties?

Question 20 of 20

Which alloy is specifically used for making ship propellers due to its properties?

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