Basic Science MCQs for Rajasthan SI
Practice 20 free basic science multiple choice questions for Rajasthan SI exam. Instant answers with explanations in Hindi and English.
Strengthen your Basic Science knowledge for Rajasthan SI 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.
Rajasthan SI — Basic Science
20 Questions • Instant results & explanations • Hindi & English
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Question 1 of 20
Unlike modern LED or fluorescent technology, the illumination generated by a traditional, old-fashioned tungsten bulb is scientifically categorized as an application of which foundational physical phenomenon?
Question 2 of 20
Given below are two statements, one labeled as Assertion (A) and the other as Reason (R): Assertion (A): Synthetic detergents can cause severe environmental water pollution. Reason (R): All synthetic detergents form insoluble scum in aquatic ecosystems. In the context of the above two statements, which one of the following is correct?
Question 3 of 20
Which year serves as the target deadline for the 'Viksit Rajasthan' (Developed Rajasthan) vision?
Question 4 of 20
Which of the following statements distinguishes Boiling from Evaporation?
Question 5 of 20
Assertion (A): Elements are pure substances that consist of only a single type of atom. Reason (R): The atoms within an element share the exact same atomic number, retaining identical chemical properties.
Question 6 of 20
In the study of modern physics, wave-particle duality applies to light. Which of the following best summarizes this duality?
Question 7 of 20
Which of the following optical characteristics represents the capacity of a lens to converge or diverge light?
Question 8 of 20
Consider the reaction: Acid + Base → Salt + Water. What underlying chemical mechanism drives this neutralization process?
Question 9 of 20
Which fundamental particle of an atom carries a unit positive charge?
Question 10 of 20
Which ancient Indian concept classifies matter into Earth, Water, Fire, Air, and Sky?
Question 11 of 20
Which scientist is associated with the 'Plum Pudding Model' of the atom?
Question 12 of 20
Regarding fuel efficiency and safety standards, the primary aliphatic components of Liquefied Petroleum Gas (LPG) are:
Question 13 of 20
Which of the following descriptions accurately defines the distinct geometric parts and alignment features inside a standard submarine periscope?
Question 14 of 20
Assertion (A): The nucleus of an atom remains intact despite the strong electrostatic repulsion between its positively charged protons. Reason (R): The nucleons are tightly bound together by strong nuclear forces, which overpower the electromagnetic repulsion.
Question 15 of 20
Which of the following is NOT a Class II lever?
Question 16 of 20
One gram of Gold can be drawn into a wire of what length?
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
What is the exact chemical identity of the useless 'scum' that vigorously forms when a traditional soap is mixed with hard water?
Question 19 of 20
Which set of materials accurately represents examples of highly effective electrical insulators?
Question 20 of 20