Elements,Compounds and Mixtures MCQs

Welcome to our comprehensive collection of Multiple Choice Questions (MCQs) on Elements,Compounds and Mixtures, a fundamental topic in the field of Chemistry. Whether you're preparing for competitive exams, honing your problem-solving skills, or simply looking to enhance your abilities in this field, our Elements,Compounds and Mixtures MCQs are designed to help you grasp the core concepts and excel in solving problems.

In this section, you'll find a wide range of Elements,Compounds and Mixtures mcq questions that explore various aspects of Elements,Compounds and Mixtures problems. Each MCQ is crafted to challenge your understanding of Elements,Compounds and Mixtures principles, enabling you to refine your problem-solving techniques. Whether you're a student aiming to ace Chemistry tests, a job seeker preparing for interviews, or someone simply interested in sharpening their skills, our Elements,Compounds and Mixtures MCQs are your pathway to success in mastering this essential Chemistry topic.

Note: Each of the following question comes with multiple answer choices. Select the most appropriate option and test your understanding of Elements,Compounds and Mixtures. You can click on an option to test your knowledge before viewing the solution for a MCQ. Happy learning!

So, are you ready to put your Elements,Compounds and Mixtures knowledge to the test? Let's get started with our carefully curated MCQs!

Elements,Compounds and Mixtures MCQs | Page 69 of 74

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Q681.
Down the group II, thermal decomposition gradually
Discuss
Answer: (a).increases
Q682.
The brown gas which is found on heating group Ii nitrate is toxic
Discuss
Answer: (b).nitrogen dioxide
Q683.
Nitrates (-NOโ‚ƒ) of Group-II down the group require for their decomposition, is high in
Discuss
Answer: (b).temperature
Q684.
The temperature at which thermal decomposition of metal carbonates of Group II takes place
Discuss
Answer: (b).increases down the group
Q685.
MgCOโ‚ƒ decomposes when heating with which of the following?
Discuss
Answer: (b).COโ‚‚
Q686.
When a Group II nitrate is heated, toxic NOโ‚‚ can be seen as
Discuss
Answer: (b).brown fumes
Q687.
Upon thermal decomposition, Ca(NOโ‚ƒ)โ‚‚ decomposes into
Discuss
Answer: (b).NOโ‚‚
Q688.
NOโ‚‚ toxic fumes are produced as a result of thermal decomposition of nitrates. This NOโ‚‚ is
Discuss
Answer: (c).Nitrogen (IV) oxide
Q689.
The temperature at which thermal decomposition of metal nitrates (e.g. Ca(NO)โ‚ƒ) of Group-II takes place,
Discuss
Answer: (b).increases down the group
Q690.
The main product of calcium carbonate is
Discuss
Answer: (d).limestone