LDC — Basic Elements of Science MCQs
Practice 20 free basic elements of science multiple choice questions for LDC exam. Instant answers with explanations in Hindi and English.
Master Basic Elements of Science under Basic Science for LDC with our curated MCQ set. Every question follows real Rajasthan exam patterns. Switch between Hindi and English anytime.
LDC — Basic Science — Basic Elements of Science
20 Questions • Instant results & explanations • Hindi & English
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Question 1 of 20
Identify the chemical formula for Ammonium Chloride.
Question 2 of 20
Which ancient Indian sage is credited with naming the smallest particle of matter 'Parmanu'?
Question 3 of 20
In a 'Lemon Squeezer', the lemon is placed in the middle. This makes it a:
Question 4 of 20
If a person cannot see distant objects clearly but has normal near vision, they are suffering from:
Question 5 of 20
Which river in Western Rajasthan is referred to as 'Maruganga' but is currently facing severe ecological stress due to pollution?
Question 6 of 20
In the context of states of matter, what does 'BEC' stand for?
Question 7 of 20
Match List-I (Fundamental Particles) with List-II (Discoverers) and select the correct answer: List-I A. Electron B. Proton C. Neutron List-II i. James Chadwick ii. J.J. Thomson iii. Goldstein
Question 8 of 20
The brilliance and sparkle of a diamond is primarily due to which optical phenomenon?
Question 9 of 20
What is the speed of sound in seawater compared to pure water?
Question 10 of 20
Consider the following pairs regarding elements and their superlatives: 1. Heaviest Metal - Osmium 2. Lightest Element - Helium 3. Liquid Metal - Mercury 4. Liquid Non-metal - Bromine Which of the pairs given above are correctly matched?
Question 11 of 20
As per the data for the end of 2025, what is the share of Rajasthan in India's total installed solar capacity?
Question 12 of 20
Which of the following describes the relationship between Refractive Index (n) and the speed of light in a medium (v), where 'c' is the speed of light in a vacuum?
Question 13 of 20
What is the relative mass of an electron?
Question 14 of 20
The capacity of the solar projects being developed at Pugal, Bikaner is:
Question 15 of 20
Which gas is primarily separated from air using Fractional Distillation?
Question 16 of 20
The phenomenon where a ray of light changes its path when passing from one medium to another is called:
Question 17 of 20
If 1 Unit of electricity costs ₹5, what is the cost of running a 2 kW air conditioner for 5 hours?
Question 18 of 20
Which term originates from the Greek word 'Atomos' meaning 'Indivisible'?
Question 19 of 20
Digestion of food is an example of which type of change?
Question 20 of 20
Which of the following pairs can be separated by Sublimation?
More Basic Science Subtopics
Practice other subtopics under Basic Science to strengthen your LDC preparation.