Std. 10th IQB Science And Technology - 1, English Medium .

EPLMSAOCTNTEN

TWritten as per the latest syllabus prescribed by the Maharashtra StateBureau of Textbook Production and Curriculum Research, Pune.TENSTD. XSalient FeaturesNA compilation of Most Important QuestionsOA great resource for quick revisionQuestions covered as per the flow of the Paper PatternCAnswers framed as per mark allocationIncludes Model Activity Sheet for self evaluationEInclusion of QR Codes for students to access videos on the‘Latest Paper Pattern’ prescribed by the Board as well as toaccess the ‘Answer Key’ for the Model Activity Sheet.SAMPL Printed at: India Printing Works, Mumbai Target Publications Pvt. Ltd.No part of this book may be reproduced or transmitted in any form or by any means, C.D.ROM/Audio Video Cassettes or electronic, mechanical including photocopying; recording or byany information storage and retrieval system without permission in writing from the Publisher.P.O. No. 127674TEID: 12794 JUP

PREFACECONTENTStd. X IQB Science and Technology Part - 1 is a treasure house ofthe most important questions that would help students to face the BoardExamination confidently. This book is created in accordance with the latestsyllabus and evaluation pattern as mentioned in the handbook ‘EvaluationPattern for Std 9 and 10’ by the Maharashtra State Bureau of TextbookProduction & Curriculum Research, Pune.IQB (Important Question Bank) covers various types of questionssuch as Fill in the Blanks, Find the odd one out, Complete the Table/Chart,Questions based on figures, etc. along with answers as per the marks allottedto them. The flow of the content is mapped according to the paper pattern andis presented in the most lucid manner. Moreover, the questions provided arearranged in a chapter-wise format so that students can easily prepare for theexamination. We have provided One Model Activity Sheet at the end of thebook that enables students to assess their level of preparation for the Boardexamination.We have provided QR Codes for students to access videos on the‘Latest Paper Pattern’ as given by the Board. The QR Codes also providestudents an access to the ‘Answer Key’ given for the Model Activity Sheet.Armed with an arsenal of choicest of the questions and relevantanswers, we are confident that this book will cater to the needs of studentseffectively assist them to achieve their goal.A book affects eternity; one can never tell where its influence stops.PLFrom,PublisherEBest of luck to all the aspirants!MEdition: FirstDisclaimerSAThis reference book is transformative work based on textual contents published by Bureau ofTextbook. We the publishers are making this reference book which constitutes as fair use of textualcontents which are transformed by adding and elaborating, with a view to simplify the same toenable the students to understand, memorize and reproduce the same in examinations.This work is purely inspired upon the course work as prescribed by the Maharashtra State Bureau ofTextbook Production and Curriculum Research, Pune. Every care has been taken in the publicationof this reference book by the Authors while creating the contents. The Authors and the Publishersshall not be responsible for any loss or damages caused to any person on account of errors oromissions which might have crept in or disagreement of any third party on the point of viewexpressed in the reference book. reserved with the Publisher for all the contents created by our Authors.No copyright is claimed in the textual contents which are presented as part of fair dealing with aview to provide best supplementary study material for the benefit of students.

Paper patternStd. X: Science and Technology – Part 1(Total : 40 Marks)Time : 2 HoursThere will be separate question papers for Part 1 and Part 2 of40 marks each.Duration of each paper will be 2 hours.QuestionNo.Type of QuestionsOPL4.C3.E2.5 Questions of 1 mark each(Objectives)(B) 5 Questions of 1 mark each(Practicals / Projects basedMCQs)7 Questions of 2 marks each(solve any 5)7 Questions of 3 marks each(solve any 5)2 Questions of 5 marks each(solve any 1)N(A)1.TotalMarksTE NT 0505101505SAM[Reference: ceneje ì jep³e HeeþîeHegmlekeÀ efveefce&leer Je DeY³eeme eÀce mebMeesOeveceb[U, HegCes efveefce&le cetu³eceeHeve DeejeKe[e][P.S. Scan this QR Code to get a betterunderstanding of the New Syllabus as well asPaper Pattern.]

Q.No.Types1. (A)1.Fill in the blanks22.Find the odd one out63.Find out the correlation9TNTE166.Right or wrong?7.Choose the correct option248.Answer in one sentence269.Questions based on picture / figure3110.Give name/molecular formula35CNMake pairsChoose the correct alternative andE–SA135.rewrite the statement20391.Solve numerical problems512.Write a note653.Complete the table / flowchart784.Clarify the difference845.Give scientific reasons92M2.componentsPL1. (B)Find out the difference between twoO4.PageNo.Nature of Questions6.Write Write chemical reactions along withtheir equations1088.Give examples113

Giveexplanationstatements2.Label the diagram and explain1163.Complete the table / chart1204.Solve numerical problems1245.Complete the diagram and explain6.Answer questions based on the figure1417.Write answers with explanation1518.Write laws, theory and explain1599.Complete the paragraph16310.Explain with the help of examples1681.Draw a figure and give explanation1732.Correct the given diagram and explain182MSAN139TENRead the given paragraph and answerquestions based on itComplete the table / chart and 5.Answer the questions in detail1916.Answer questions based on the figure1967.Make a concept diagram and giveexplanationModel Activity Sheet201203Note: Textual exercise questions are represented by * mark.Textual solved examples are represented by mark.

EPLMSAOCTNTEN

Question 1 (A)TRemember ThisNThis question contains 5 sub-questions each of 1 mark. All the5 sub-questions are compulsory.TEThis question includes various question types such as ‘Fill in theblanks’, ‘Right or wrong’, ‘Make pairs’, etc.In ‛Fill in the blanks and rewrite the complete statement’,students are expected to write the complete statement andunderline the answer. In ‘Find the odd one out’, students are expected to write theodd word/phrase and give an appropriate explanation in onesentence to justify their answer. In ‘Find out the correlation’, students are expected todetermine the correlation between two components and writethe explanation in one sentence. In ‘ Find out the difference between two components’, studentsare expected to identify the difference between twoconcepts/components mentioned and write the accuratedifference in one sentence.PLECON In ‘Make pairs’, students are expected to write the answer intabular form.M SA In ‘Right or wrong?’, students are expected to write whetherthe given statement is right or wrong. In case the statement iswrong, students should write the correct statement.In ‘Choose the correct option’, students are expected to writethe complete statement and underline the answer.In case the form of a question varies from the types coveredbelow, students must read the question carefully and catering tothe requirement of the question, write the answer in the suitableform.11

IQBType 1Fill in the blanksFill in the blank and rewrite the complete statementTChapter 1: GravitationThe orbit of a planet is an ellipse with the Sun at one of the.Ans: The orbit of a planet is an ellipse with the Sun at one of the foci.TEN1.According to Newton’s first law, mass is the measure ofof an object.Ans: According to Newton’s first law, mass is the measure of inertiaof an object.N2.O3.True free fall is possible only in .Ans: True free fall is possible only in vacuum.An object going vertically upwards willgravitational influence of the earth, if itsequal to of the earth.Ans: An object going vertically upwards willgravitational influence of the earth, if itsequal to escape velocity of the earth.EC4.be free from theinitial velocity isbe free from theinitial velocity isMPL[Note: Answers are provided in concise form henceforth. However,students are expected to answer in the appropriate format.]Chapter 2: Periodic Classificationof ElementsElements lithium, sodium and make Dobereiner’s triad.6.According to periodic law of Mendeleev, the properties ofelements are periodic function of their .The lightest element in the modern periodic table is .Atomic number (Z) of an element is the number ofpresent in the nucleus of an atom of that element.The first element of group 15 in the modern periodic tableis .SA5.7.8.9.10.Iodine (I2) exists as at room temperature.2

Q.1 (A)Answerspotassiumhydrogennitrogen6.8.10.atomic massesprotonssolidNChapter 3: Chemical Reactions andEquationsT5.7.9.The composition of matter changes in a change.12.Evaporation of water is a change.13.When electric current is passed through acidulated water,of water takes place.14.Addition of an aqueous solution of ZnSO4 to an aqueoussolution of BaCl2 is an example of reaction.15.The conversion of ferrous sulphate to ferric sulphate isreaction.16.Damage of a metal due to oxidation by atmosphericcomponents is called .17.The rust chemically is .18.To prevent rusting, a layer of metal is applied on nFe2O3 le displacementcorrosionzincChapter 4: Effects of ElectricCurrent19.The live and neutral wires have potential difference of .20.A copper wire with a resistive coating when is wound in achain of loops is called .Answers19.3220 V20.solenoid3

IQBChapter 5: Heat*21. During transformation of liquid phase to solid phase, the latentheat is .Latent heat per unit mass of a substance is its .23.In the process of regelation, melting point of ice gets loweredthan 0 C due to .24.The relative humidity at the dew point is .25.The property which determines the amount of heat absorbed byan object is called .26.The SI unit of specific heat is .NTENT22.Answers22.24.26.specific latent heat.100%.J/ C kg.Ogiven off (released)pressure.specific heat.C21.23.25.EChapter 7: LensesA lens does not produce any deviation of a ray of light passingthrough its .28.lens produces a magnification always less than 1.MPL27.The in our eyes consists of many light sensitive cells.30.The capacity of the eye lens to change its focal length is calledits .31.Concave lenses are used in spectacles for correcting .32.An image remains imprinted on retina for of secondafter the object is removed.SA29.Answers27.29.31.optical centreretinanearsightedness.428.30.32.Concavepower of accommodation.1/16th

Q.1 (A)Chapter 8: MetallurgyThe metal with the highest melting point is .34.The hardest natural substance is .35.An allotrope of carbon which conducts electricity is .36.The main ore of aluminium is .37.The process in which a less reactive metal is coated on a morereactive metal is called .38.Silver amalgam contains silver and phiteelectroplatingC33.35.37.NAnswersEChapter 9: Carbon CompoundsThe first organic compound which was synthesized frominorganic compounds in laboratory was .40.One carbon atom can form covalent bonds.41.The smallest carbon compound is .42.The first member of the homologous series of alkenes is.SAMPL39.43.Tincture of iodine contains iodine and .44.The monomer unit in PVC is thene (ethylene)vinyl chloride5