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CBSE Board Exam 2021 – Practice Important Questions from Class 10 Science Compartment Question 2020

CBSE Board Exam 2021 – Practice Important Questions from Class 10 Science Compartment Question 2020
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CBSE Board Exam 2021 – Practice Important Questions from Class 10 Science Compartment Question 2020

CBSE Board Exam 2021 – Practice Important Questions from Class 10 Science Compartment Question 2020

CBSE class 10 Science paper below the upcoming Board Exam 2021 is scheduled to be performed on twenty first Might, 2021 (Friday). To carry out excellently within the examination college students should remedy a number of questions primarily based on essential subjects and ideas. Class 10 Science Compartment Question Paper 2020 kinds an excellent supply of essential questions as all of the questions has been ready by the CBSE’s educators following the rules laid down by the board. College students can follow these questions to shine their preparations for the upcoming CBSE Class 10 Science Board Exam 2021.(*10*)

CBSE Class 10 Science Compartment Question Paper 2020: (*10*)

Time allowed : 3 hours(*10*)

Most Marks : 80(*10*)

Normal Directions: (*10*)

Learn the next directions very fastidiously and strictly observe them.(*10*)

(i) This query paper contains three Sections — A, B and C. There are 30 questions within the query paper. All questions are obligatory.(*10*)

(ii) Part A – Question nos. 1 to 14 — all questions or half thereof are of 1 mark every. These questions comprise A number of Selection Questions (MCQ), Very Brief Reply (VSA) and Assertion–Cause sort questions. Reply to those questions needs to be given in a single phrase or one sentence.(*10*)

(iii) Part B – Question nos. 15 to 24 are quick reply sort questions, carrying 3 marks every. Reply to those questions shouldn’t exceed 50 to 60 phrases.(*10*)

(iv) Part C – Question nos. 25 to 30 are lengthy reply sort questions, carrying 5 marks every. Reply to those questions shouldn’t exceed 80 to 90 phrases.(*10*)

(v) Solutions needs to be transient and to the purpose. Additionally the above talked about phrase restrict be adhered to so far as attainable.(*10*)

(vi) There isn’t a general alternative within the query paper. Nevertheless, an inner alternative has been supplied in some questions in every part. Solely one of many selections in such questions should be tried.(*10*)

(vii) Along with this, separate directions are given with every part and query, wherever mandatory.(*10*)

SECTION A(*10*)

1. Title two infections which might be sexually transmitted in human beings.(*10*)

2. Outline pole of a spherical mirror.(*10*)

Reply query numbers 3(a) – 3(d) on the premise of your understanding of the next paragraph and the associated studied ideas:(*10*)

Matter round us is discovered within the type of components, compounds and mixtures. The weather include atoms of just one sort. Across the yr 1800, solely 30 components displaying completely different properties have been identified. Scientists of that age found a sample of their properties and primarily based on that sample, a number of makes an attempt have been made to categorise components. The earliest try was to categorise the weather as metals and non-metals. The newest is the ‘Fashionable Periodic Desk’. This desk consists of seven intervals and 18 teams. Every ingredient of a bunch within the periodic desk has the an identical outer shell digital configuration. In different phrases, the teams within the periodic desk signify an an identical outer shell digital configuration. As we go down the group within the periodic desk, the variety of shells will increase.(*10*)

3(a) Write the necessity to classify components.(*10*)

3(b) What number of teams are there within the ‘Fashionable Periodic Desk’?(*10*)

3(c) Which one of many following statements is just not appropriate concerning the ‘Fashionable Periodic Desk’?(*10*)

(A) It’s primarily based on atomic lots.(*10*)

(B) The place of isotopes is just not disputed.(*10*)

(C) The place of isotopes is definitely assigned.(*10*)

(D) It separates metals from non-metals.(*10*)

3(d) The reason for periodicity of properties of components is(*10*)

(A) Rising atomic radius(*10*)

(B) Rising atomic mass(*10*)

(C) Rising nuclear cost(*10*)

(D) The recurrence of comparable outer digital configuration(*10*)

4. Reply query numbers 4(a) – 4(b) on the premise of your understanding of the next paragraph and the associated studied ideas:(*10*)

There are completely different types of power and one type of power might be transformed into one other. Once we mild a wax candle, the method is extremely exothermic and on burning, the chemical power of the wax will get transformed into warmth and lightweight. An excellent supply of power is to be chosen for the selection of labor to be completed. In historic occasions, wooden was the commonest supply of warmth power. We, in our each day lives, use varied power sources for doing the work. These days we use diesel and electrical energy to run trains. We additionally use fossil fuels in autos which has some severe disadvantages, primarily air air pollution. The current instance of air air pollution was ‘Smog’ within the Nationwide Capital Area of Delhi. This air pollution was a results of burning ‘Parali’ in northern states of the nation, which affected the eyes and likewise precipitated severe respiratory issues.(*10*)

4(a) State the power conversion that takes place once we mild a wax candle.(*10*)

4(b) Listing two standards of choosing a supply of power for a particular work.(*10*)

4(c) Write the names of two fossil fuels.(*10*)

4(d) Why are we alternate sources of power?(*10*)

5. Which one of many following pure sources incorporates Oxalic acid?(*10*)

(A) Tomato(*10*)

(B) Tamarind(*10*)

(C) Ant sting(*10*)

(D) Nettle sting(*10*)

OR(*10*)

The acid produced in our abdomen throughout digestion of meals is(*10*)

(A) Hydrochloric acid(*10*)

(B) Oxalic acid(*10*)

(C) Lactic acid(*10*)

(D) Acetic acid(*10*)

6. Copper utensils slowly lose their shiny brown floor and achieve a inexperienced coat on extended publicity to atmospheric air. That is because of the formation of a coating of(*10*)

(A) Copper sulphate(*10*)

(B) Copper carbonate(*10*)

(C) Cupric oxide(*10*)

(D) Cuprous oxide(*10*)

7. Which one of many following statements is true concerning the place of metals within the exercise collection of metals?(*10*)

(A) Copper is beneath hydrogen however above lead.(*10*)

(B) Iron is beneath lead and zinc.(*10*)

(C) Zinc is beneath magnesium however above aluminium.(*10*)

(D) Magnesium is beneath calcium however above aluminium.(*10*)

class10 science cqp 2020 image1(*10*)

9. The stamen incorporates(*10*)

(A) stigma(*10*)

(B) pollen grain(*10*)

(C) sepal(*10*)

(D) ovule(*10*)

OR(*10*)

Seeds are referred to as merchandise of sexual replica as a result of they(*10*)

(A) give rise to new crops.(*10*)

(B) are fashioned by fusion of gametes.(*10*)

(C) are fashioned by the fusion of pollen tubes.(*10*)

(D) can survive for an extended interval(*10*)

10. Think about the next ecosystems:(*10*)

I. Ponds(*10*)

II. Forests(*10*)

III. Aquariums(*10*)

IV. Crop fields Out of those, the pure ecosystems are(*10*)

(A) I, II and III(*10*)

(B) II, III and IV(*10*)

(C) I and II solely(*10*)

(D) I, II and IV(*10*)

.(*10*)

.(*10*)

.(*10*)

Obtain the whole query papers together with different units of the paper from the hyperlinks supplied beneath:(*10*)

Additionally, verify the Science query papers of the final two years’ CBSE class 10 compartment exams:(*10*)

CBSE Class 10 Science Compartment Question Paper 2019(*10*)

CBSE Class 10 Science Compartment Question Paper 2018(*10*)

College students also needs to follow questions requested within the earlier years’ board examinations. CBSE pattern papers additionally kind supply of essential questions for board exams. College students ought to remedy questions of various codecs to outshine others within the upcoming CBSE Class 10 Board Exam 2021. Verify beneath the hyperlinks to entry CBSE Class 10 Science earlier years’ query papers and newest pattern:(*10*)

CBSE Class 10 Science Earlier Years’ Question Papers (2010-2020)(*10*)

CBSE Class 10 Science Pattern Question Paper 2021 with Marking Scheme(*10*)

Important* CBSE Class 10 Science Full Research Materials & Preparation Information for Board Exam 2021(*10*)

 (*10*)


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