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Download here CBSE Term 2 Sample Papers for Class 10 Science for Upcoming Term 2 Board Exam 2022. This sample paper will help you to understand the subjective type question paper pattern. Also, download the CBSE Marking Scheme to know the answer hints for all the sample paper questions.
CBSE Board Exam 2022 (Term 2): Get here CBSE Term 2 Sample Papers and Marking Scheme for Class 10 Science. CBSE Class 10 Science Term 2 Sample Paper 2022 reveals the question paper design for Science Term 2 exam which will be held on May 10, 2022. CBSE Class 10 Science Marking Scheme 2022 shows the answer signs that can be considered near to the solutions of all the questions given in the sample paper. CBSE marking scheme also helps in understanding how to write concise and step-wise solutions in board exams.
Check Below CBSE Class 10 Science (086) sample paper term 2 (2022):
Max. Marks: 40
Allowed Time: 2 Hours
i) All questions are compulsory.
ii) The question paper has three sections and 15 questions. All questions are compulsory.
iii) Section-A consists of 7 questions of 2 marks each; Section-B consists of 6 questions of 3 marks each; And Section-C consists of 2 case based questions carrying 4 marks each.
iv) In some questions internal choices are given. A student has to attempt only one option out of such questions.
Also check CBSE Class 10 Science Term 2 Syllabus 2022
1. The table shows the electronic structures of the four elements.
A. Identify which element will form covalent bond with carbon.
b. “Carbon reacts with an element in the above table to form many compounds.” Give proper reason.
2. The figure given below shows the part of the periodic table.
A. Which elements will react together to form covalent compounds?
b. Which one will have greater atomic radius between the two elements W and Z? Why?
3. a. Find out the path followed by a male gamete to fertilize a female gamete after being released from the sex.
b. Give the number of sets of chromosomes present in the zygote.
4. Rajesh saw a piece of green black powder on a stale piece of bread.
A. Name the organism responsible for this and its specific mode of asexual reproduction.
b. Name its botanical and reproductive organs.
5. Mustard was growing in two fields- A and B. Field A produced brown colored seeds, while field B produced yellow colored seeds.
It was observed that in region A, the offspring showed only parental traits for successive generations, whereas in region B, most of the offspring showed variation in the offspring. What are the possible reasons for this?
In an asexually reproducing species, if a trait X is present in 5% of the population and trait Y is present in 70% of the same population, which of the two traits is most likely to arise first? To give reason
6. A simple motor is made in the school laboratory. A coil of wire is mounted on an axis between the poles of a horseshoe magnet, as illustrated.
In the above example, the coil ABCD is horizontal and the battery is connected as shown.
A. State the direction of the force on the arm AB for this case.
b. Why does the current in arm BC not contribute to the turning force of the coil?
A circuit consists of a battery, a variable resistor and a solenoid. The figure below shows the magnetic field pattern produced by the current in the solenoid.
A. Explain how the magnetic field pattern indicates regions where the magnetic field is stronger.
b. What happens to the magnetic field when the current in the circuit is reversed?
7. DDT was sprayed in a lake to control the breeding of mosquitoes. How will this affect the trophic levels in the following food chain associated with a lake? justify your answer.
In the following food chain, vertical arrows indicate energy lost to the environment and horizontal arrows indicate energy transferred to the next trophic level. Which of the three vertical arrows (A, C and E) and which of the two horizontal arrows (B and D) would represent the greater energy transfer? Give reason for your answer.
Section – B
8. Choose one element from Period 3 of the Modern Periodic Table that matches the description given below in each of the examples. Give reason for your choice.
A. Its structure is similar to that of a diamond.
b. Its valency is similar to that of lithium. C. It has variable valency and is a member of the oxygen family (group 16).
9. a. How many isomers are possible for a compound with molecular formula C4H8? Draw the electron dot structure of a branched chain isomer.
b. How will you prove that C4H8 and C5h10 are identical?
A carbon compound ‘A’ having melting point 156K and boiling point 351K has molecular formula C. with2h6O is soluble in water in all proportions.
A. Identify ‘A’ and draw its electron point structure.
b. Write the molecular formulas of any two homologs of ‘A’.
10. Two pea plants – one with round yellow seeds (RRYY) and the other with wrinkled green (Rryy) seeds, produce F1 offspring that have round, yellow (RrYy) seeds.
When F1 plants are self pollinated, what new combination of characters is expected in F2 progeny? When a total of 160 seeds are produced in the F2 generation, how many seeds will be produced with the combination of these new characters? Explain with reason.
Download the complete CBSE Class 10 Term 2 Sample Paper and its CBSE Marking Scheme from the following link:
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