CET Graduate — Chemistry (basic reactions) MCQs
Practice 20 free chemistry (basic reactions) multiple choice questions for CET Graduate exam. Instant answers with explanations in Hindi and English.
Master Chemistry (basic reactions) under Basic Science for CET Graduate with our curated MCQ set. Every question follows real Rajasthan exam patterns. Switch between Hindi and English anytime.
CET Graduate — Basic Science — Chemistry (basic reactions)
20 Questions • Instant results & explanations • Hindi & English
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Question 1 of 20
The total number of nucleons (protons plus neutrons) located in the nucleus constitutes which specific property of an atom?
Question 2 of 20
Which of the following describes the fundamental distinction between the mechanism of a food preservative and an antioxidant?
Question 3 of 20
Consider the following statements regarding Zinc extraction in Rajasthan: 1. The Debari Zinc Smelter processes concentrated ore derived exclusively from the Khetri mines. 2. Zinc Blende is chemically represented as $ZnS$. Which of the statements given above is/are correct?
Question 4 of 20
Which of the following balanced chemical equations accurately represents the thermal decomposition of Baking Soda?
Question 5 of 20
Addressing critical global ecological crises, specifically the mitigation of greenhouse gases, atmospheric pollution control, and sustainable practices, is the core academic mandate of:
Question 6 of 20
What is the precise chemical name and formula for the agent most commonly utilized as 'Tear Gas' in modern riot control applications?
Question 7 of 20
For candidates appearing in highly specialized practical examinations like that of a Laboratory Assistant, theoretical science is insufficient. They must possess precise, specialized knowledge particularly regarding:
Question 8 of 20
In the archetypal double displacement reaction occurring dynamically between aqueous sodium sulfate and aqueous barium chloride, which specific newly formed compound aggressively drops out of solution as an insoluble solid?
Question 9 of 20
Consider the reaction: Acid + Base → Salt + Water. What underlying chemical mechanism drives this neutralization process?
Question 10 of 20
The invention and synthesis of a novel medicinal compound typically occur in small laboratory beakers. However, translating this reaction to safely manufacture millions of doses for public consumption is the distinct scientific mandate of:
Question 11 of 20
In industrial chemistry, the potent fuel mixture universally identified as 'Producer Gas' consists primarily of which two gaseous components?
Question 12 of 20
In order for a standard atom to remain electrically neutral, which two subatomic particles must absolutely exist in equal numbers?
Question 13 of 20
Assertion (A): The artificial ripening of commercial fruits is a process deeply dictated by the principles of chemistry. Reason (R): Artificial ripening utilizes specific chemical agents, such as ethylene gas or calcium carbide, to actively trigger and accelerate the biochemical metabolic pathways within the fruit.
Question 14 of 20
Given below are two statements, one labeled as Assertion (A) and the other as Reason (R): Assertion (A): Soaps are considered eco-friendly compared to many synthetic detergents. Reason (R): Soaps are highly biodegradable because they are derived from natural carboxylic acids. In the context of the above two statements, which one of the following is correct?
Question 15 of 20
The substance scientifically referred to as 'dead burnt plaster' is chemically recognized as:
Question 16 of 20
Match List-I with List-II and select the correct answer using the codes given below: List-I (Process/Phenomenon) A. Metabolic growth of destructive microorganisms B. Accumulation of branched hydrocarbon chains in rivers C. Oxygen free radicals attacking dietary fats List-II (Chemical Additive/Agent Responsible) 1. Antioxidants (like BHA/BHT) prevent this 2. Food Preservatives (like Sodium Benzoate) prevent this 3. Non-biodegradable Synthetic Detergents cause this
Question 17 of 20
Which of the following compounds is explicitly classified as a weak base due to its partial ionization in water?
Question 18 of 20
What is the primary mechanism by which food preservatives protect consumable goods?
Question 19 of 20
Advanced analytical chemistry often deals with topics such as polymers, metallurgy, and buffers. In a rigorous chemical context, what is the primary function of a 'buffer' solution?
Question 20 of 20
What is the exact chemical identity of the useless 'scum' that vigorously forms when a traditional soap is mixed with hard water?
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