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Section 1: Chemical Reactions and Equations, Acids, Bases and Salts, Metals and Non-metals, Carbon and its Compounds, Periodic Classification of Elements, Life Processes, Reproduction in Organisms, Heredity and Evolution, Light-Reflection and Refraction, Human Eye and Colourful World, Electricity, Magnetic Effects of Electric Current, Sources of Energy, Our Environment and its Management.
Achievers Section: Higher Order Thinking Questions - Syllabus as per Section 1
| Q.1 | Q.2 | Q.3 | Q.4 | Q.5 | Q.6 | Q.7 | Q.8 | Q.9 | Q.10 |
Q.1 |
Which of the following metals cannot be refined by electrolytic refining? (i) Au |
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Q.2 |
It is possible to measure the passage of 50 electrons per sec with a certain sensitive device. This corresponds to a current of: |
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Q.3 |
Which one of the following elements is alloyed with iron to produce steel which can resist high temperatures and also have high hardness and abrasion resistance? |
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Q.4 |
Length and diameters of four wires of same material are given below. The resistance of which of the following wires will be minimum? |
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Q.5 |
Identify the phenomenon by which a new set of the population is formed from the change in the frequency of some genes: |
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Q.6 |
Which of the following is obtained in its pure form by the reaction of sugar and sulphuric acid? |
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Q.7 |
Consider the following reaction: 2CaO + C → CaC2 + 2CO If X is involved in the neutralisation reaction with acid, then Y may be: |
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Q.8 |
In the following question, an assertion and a reason are given. Choose the correct option: Assertion: In a simple electric circuit, the positive terminal of the battery is a point of lowest potential. Reason: The electronic current flow in a circuit is from a point of highest potential to a point of lowest potential. |
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Q.9 |
Study the circuit given below and determine the effective resistance (in Ω) between A and B: ![]() |
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Q.10 |
Match List I (Vegetative propagation type) with List II (Example):
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Your Score: 0/10
Answers to Sample Questions from CREST Olympiads:
Q.1 : d | Q.2 : a | Q.3 : b | Q.4 : c | Q.5 : a | Q.6 : b | Q.7 : b | Q.8 : c | Q.9 : a | Q.10 : b