Basic Elements of Science MCQs for LDC
Practice 20 free basic elements of science multiple choice questions for LDC exam. Instant answers, explanations in Hindi and English, and topic-wise targeted practice.
Master Basic Elements of Science under Basic Science for LDC with our curated MCQ set. Every question is sourced from real Rajasthan exam patterns and updated regularly. Switch between Hindi and English anytime. Use this daily to strengthen weak areas before the exam.
LDC — Basic Science — Basic Elements of Science
20 Questions • Instant results & explanations • Hindi & English
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Question 1 of 20
Which of the following creates a new substance with properties completely different from the original substance?
Question 2 of 20
Which of the following gases is NOT used as a fuel gas?
Question 3 of 20
What is the primary cause of 'Sodic Land' formation in agricultural areas near Balotra?
Question 4 of 20
Amalgam is an alloy of which specific metal with other metals?
Question 5 of 20
Which gas is primarily separated from air using Fractional Distillation?
Question 6 of 20
Match the correct refractive index values: List-I (Material) List-II (Refractive Index) A. Air 1. 1.33 B. Kerosene 2. 1.0003 C. Water 3. 1.44
Question 7 of 20
Psychology and Sociology are classified under which branch of science?
Question 8 of 20
According to the latest data, approximately what percentage of Rajasthan's total electricity capacity comes from renewable energy sources?
Question 9 of 20
What is the primary condition for using Fractional Distillation to separate two liquids?
Question 10 of 20
Which fundamental particle of an atom carries a unit positive charge?
Question 11 of 20
The refractive index of Crown Glass is 1.52. This means light travels in Crown Glass:
Question 12 of 20
Which of the following technologies is explicitly mentioned for achieving the 10 GW energy storage target in Rajasthan?
Question 13 of 20
For a Class III lever, the Mechanical Advantage (MA) is always:
Question 14 of 20
How is plasma formed inside a fluorescent tube or neon sign bulb?
Question 15 of 20
Why did Bohr propose that electrons revolve in discrete orbits?
Question 16 of 20
What is the specific composition of the nucleus of a Deuterium atom?
Question 17 of 20
Which hormone is responsible for the natural ripening of fruits?
Question 18 of 20
In the context of the 'Basic Elements of Science' report, which section addresses 'Electrical Safety and Management'?
Question 19 of 20
Which process is the reverse of Vaporization?
Question 20 of 20