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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 |
Fill in the blank: When a ray of light falls on a transparent glass plate, a part of it is reflected and a part is refracted. The reflected and refracted rays can be perpendicular to each other for ____________. |
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Q.2 |
Match column I with column II and select the correct answer using the codes given below:
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Q.3 |
A convex mirror of focal length f produces an image 1/nth of the size of the object. Calculate the distance of the object from the mirror: |
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Q.4 |
In the following question, an assertion and a reason are given. Choose the correct option: Assertion (A): In any food chain, the number of organisms in any trophic level should always be less than that in its previous trophic level. |
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Q.5 |
In the following question, an assertion and a reason are given. Choose the correct option: Assertion: According to Döbereiner's, a group of three similar elements arranged in their increasing atomic weights show that the atomic weight of middle is equal to the arithmetic mean of the other two elements. Reason: Atomic weight is equal to one-twelfth of the mass of a carbon atom. |
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Q.6 |
Which environmental hazard is not contributed by the combustion of fossil fuels? |
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Q.7 |
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.8 |
Which of the following metals cannot be refined by electrolytic refining? (i) Au |
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Q.9 |
Choose the correct option and complete the following sentence: An electric motor consists of ____________. |
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Q.10 |
Fill in the blank: Neutral water with pH of about 7 becomes slightly acidic when aerated. This is because ________________. |
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Your Score: 0/10
Students can find the most recent CREST Science Olympiad previous year paper pdf for class 10 on this page. The pdf is easily downloadable & answer key for all the questions is also provided on the last page.
CREST Science Olympiad previous year papers become quite useful while preparing for the CREST Science Olympiad exam. Below are some advantages of referring to the previous year papers -
Students can also refer to the following resources to level up their CREST Science Olympiad (CSO) exam preparation for class 10 -
Note: Don’t forget to download the CREST Science Olympiad past year paper pdf for class 10.
Answers to Previous Year Questions from CREST Olympiads:
Q.1 : c | Q.2 : b | Q.3 : c | Q.4 : a | Q.5 : b | Q.6 : c | Q.7 : c | Q.8 : d | Q.9 : c | Q.10 : d