Option no. 1 can be the polynomial as the power of its variable is a whole no. But if you see the second one the power of the variable x is not a whole no.

1.6

144

If that is a root 5 then it is a irrational no.

Sorry it was rational I should repeat that you can solve or prove it by taking its contradiction as it is a rational no.

You can prove it by taking its contradiction as it is an irrational no. Hope it will help you?

Is that root

Long term loans

public gives loan to a company , debenture is like a promissory note to public that it will give money back to public with interest to its debenture holders , Note :- no banking process involved here !

It's like a loan

Noo

78/99,79/99,80/99,81/99,82/99,83/99,84/99,85/99,86/99,87/99

This topic Is deleted from syllabus

https://www.successcds.net/class10/class-10-science-mcq/chapter-11-the-human-eye-and-the-colorful-world.html

What is atmospheric refraction

Hi

You can find out in Google

Acids which reacts with both acids as well as with bases is called amphoteric oxide. Example: Zinc oxide and aluminium oxide are examples of amphoteric oxide.

What is amphoteric oxide?

What is the colour of copper sulphate

Yes

Class 10 Science MCQs Chapter 3 Metals and Non-Metals 1. Aluminium is used for making cooking uten¬sils. Which of the following properties of alu¬minium are responsible for the same? (i) Good thermal conductivity (ii) Good electrical conductivity (iii) Ductility (iv) High melting point (a) (i) and (ii) (b) (i) and (iii) (c) (ii) and (iii) (d) (i) and (iv) Answer 2. The most abundant metal in the earth’s crust is (a) Iron (b) Aluminium (c) Calcium (d) Sodium Answer 3. The poorest conductor of heat among metals is (a) Lead (b) Mercury (c) Calcium (d) Sodium Answer Answer: a 4. Which property of metals is used for making bells and strings of musical instruments like Sitar and Violin? (a) Sonorousness (b) Malleability (c) Ductility (d) Conductivity Answer 5. Al2O3 + 2NaOH → …… + H2O (a) Al(OH)3 (b) Na2O (c) NaAlO2 (d) AlNaO2 Answer 6. Which of the following is the correct arrange-ment of the given metals in ascending order of their reactivity? Zinc, Iron, Magnesium, Sodium (a) Zinc > Iron > Magnesium > Sodium (b) Sodium > Magnesium > Iron > Zinc (c) Sodium > Zinc > Magnesium > Iron (d) Sodium > Magnesium > Zinc > Iron Answer 7. Which of the following pairs will give dis-placement reactions? (a) FeSO4 solution and Copper metal (b) AgNO3 solution and Copper metal (c) CuSO4 solution and Silver metal (d) NaCl solution and Copper metal Answer 8. Non-metals form covalent chlorides because (a) they can give electrons to chlorine (b) they can share electrons with chlorine (c) they can give electrons to chlorine atoms to form chloride ions (d) they cannot share electrons with chlorine atoms Answer 9. Which of the following oxide(s) of iron would be obtained on prolonged reaction of iron with steam? (a) FeO (b) Fe2O3 (c) Fe3O4 (d) Fe2O3 and Fe2O4 Answer/ Explanation 10. Which of tire following are not ionic compounds? (i) KCl (ii) HCl (iii) CCl4 (iv) NaCl (a) (i) and (ii) (b) (ii) and (iii) (c) (iii) and (iv) (d) (i) and (iii) Answer 11. The electronic configuration of three elements X, Y and Z are as follows: X = 2, 4, Y = 2, 7, Z = 2,1 Which two elements will combine to form an ionic compound and write the correct formula, (a) X2Y (b) YZ (c) XZ3</sub (d) Y2Z Answer 12. The highly reactive metals like Sodium, Potas-sium, Magnesium, etc. are extracted by the (a) electrolysis of their molten chloride (b) electrolysis of their molten oxides (c) reduction by aluminium (d) reduction by carbon Answer 13. Which of the following non-metal is lustrous? (a) Sulphur (b) Oxygen (c) Nitrogen (d) Iodine Answer 14. Example of an amphoteric oxide is: (a) Na2O (b) K2O (C) Al2O3 (d) MgO Answer 15. Which one among the following is an acidic oxide? (a) Na2O (b) CO (c) CO2 (d) Al2O3 Answer 16. The atomic number of an element ‘X’ is 12. Which inert gas is nearest to X? (a) He (b) Ar (c) Ne (d) Kr Answer/ Explanation 17, The process in which a carbonate ore is heated strongly in the absence of air to convert it into metal oxide is called (a) Roasting (b) Reduction (c) Calcination (d) Smelting Answer 18. Oxides of moderately reactive metals like Zinc, Iron, Nickel, Tin, Copper etc. are reduced by using (a) Aluminium as reducing agent (b) Sodium as reducing agent (c) Carbon as reducing agent (d) Calcium as reducing agent Answer 19. In thermite welding a mixture of …… and …… is ignited with a burning magnesium ribbon which produces molten iron metal as large amount of heat is evolved. (a) iron (III) oxide and aluminium powder (b) iron (II) oxide and aluminium powder (c) iron (III) chloride and aluminium powder (d) iron (III) sulphate and aluminium powder Answer 20. Galvanisation is a method of protecting iron from rudftng by coating with a thin layer of (a) Galium (b) Aluminium (c) Zinc (d) Silver Answer 21. An element X is soft and can be cut with a knife. This is very reactive to air and cannot be kept open in air. It reacts vigorously with water. Identify the element from the following (a) Mg (b) Na (c) P (d) Ca Answer 22. Reaction between X and Y forms compound Z. X loses electron and Y gains electron. Which of the following properties is not shown by Z? (a) Has high melting point (b) Has low melting point (c) Conducts electricity in molten state (d) Occurs as solid Answer/ Explanation 23. The electronic configurations of three ele¬ments X, Y and Z are X — 2, 8; Y — 2, 8, 7 and Z — 2, 8, 2. Which’of the following is correct? (a) X is a metal (b) Y is a metal (c) Z is a non-metal (d) Y is a non-metal and Z is a metal Answer/ Explanation 24. Amalgam is an alloy of (a) Copper and Tin (b) Mercury (c) Lead and Tin (d) Copper and Zinc Answer 25. Copper objects lose their shine and form green coating of (a) Copper oxide (b) Copper hydroxide and Copper oxide (c) Basic Copper carbonate (d) Copper carbonate Answer Fill in the blanks 1. Elements can be classified as ……… and ……. . 2. Two examples of metals which are poor conductors of heat are ………, ……… . 3. Two metals which melt when kept on the palm are ………, ……… . 4. A non-metal which is a good conductor of electricity is ……… . 5. Metals can form positive ions by ……… . 6. A non-metal which is lustrous is ……… . 7. A metal which burns in air with a dazzling white flame is ……… . 8. Metals above hydrogen in the activity series can displace ……… from dilute acids. 9. The extraction of metals from their ores and then refining them for use is known as ……… . 10. ……… is an allotroph of carbon and is the hardest natural substance. 11. Metals which are so soft that they can be cut with a knife are ………, ……… 12. Metal oxides ……… and ……… dissolve in water to form alkalis. Answers 1. metals, non-metals 2. Lead, Mercury 3. Gallium, Caesium 4. Graphite 5. losing electrons 6. Iodine 7. Magnesium 8. Hydrogen 9. metallurgy 10. Diamond 11. Sodium, Potassium 12. Sodium Oxide and Potassium oxide We hope the given MCQ Questions for Class 10 Science Metals and Non-Metals with Answers will help you. If you have any query regarding CBSE Class 10 Science Chapter 3 Metals and Non-Metals Multiple Choice Questions with Answers, drop a comment below and we will get back to you at the earliest. Filed Under: CBSE    Factoring Calculator Rational Numbers CGPA Calculator TOP Universities in India TOP Engineering Colleges in India TOP Pharmacy Colleges in India Coding for Kids Math Riddles for Kids with Answers General Knowledge for Kids General Knowledge Scholarships for Students NSP - National Scholarip Portal Class 12 Maths NCERT Solutions Class 11 Maths NCERT Solutions NCERT Solutions for Class 10 Maths NCERT Solutions for Class 9 Maths NCERT Solutions for Class 8 Maths NCERT Solutions for Class 7 Maths NCERT Solutions for Class 6 Maths NCERT Solutions for Class 6 Science NCERT Solutions for Class 7 Science NCERT Solutions for Class 8 Science NCERT Solutions for Class 9 Science NCERT Solutions for Class 10 Science NCERT Solutions for Class 11 Physics NCERT Solutions for Class 11 Chemistry NCERT Solutions for Class 12 Physics NCERT Solutions for Class 12 Chemistry NCERT Solutions for Class 10 Science Chapter 1 NCERT Solutions for Class 10 Science Chapter 2 Metals and Nonmetals Class 10 carbon and its compounds class 10 Periodic Classification of Elements Class 10 Life Process Class 10 NCERT Solutions for Class 10 Science Chapter 7 NCERT Solutions for Class 10 Science Chapter 8 NCERT Solutions for Class 10 Science Chapter 9 NCERT Solutions for Class 10 Science Chapter 10 NCERT Solutions for Class 10 Science Chapter 11 NCERT Solutions for Class 10 Science Chapter 12 NCERT Solutions for Class 10 Science Chapter 13 NCERT Solutions for Class 10 Science Chapter 14 NCERT Solutions for Class 10 Science Chapter 15 NCERT Solutions for Class 10 Science Chapter 16 FREE RESOURCES RD Sharma Class 12 SolutionsRD Sharma Class 11RD Sharma Class 10RD Sharma Class 9RD Sharma Class 8RD Sharma Class 7CBSE Previous Year Question Papers Class 12CBSE Previous Year Question Papers Class 10NCERT BooksMaths FormulasCBSE Sample PapersVedic Maths   NCERT SOLUTIONS NCERT Solutions for Class 10NCERT Solutions for Class 9NCERT Solutions for Class 8NCERT Solutions for Class 7NCERT Solutions for Class 6NCERT Solutions for Class 5NCERT Solutions for Class 4NCERT Solutions for Class 3NCERT Solutions for Class 2NCERT Solutions for Class 1 QUICK RESOURCES English GrammarHindi GrammarTextbook SolutionsMaths NCERT SolutionsScience NCERT SolutionsSocial Science NCERT SolutionsEnglish SolutionsHindi NCERT SolutionsNCERT Exemplar ProblemsEngineering Entrance ExamsLike us on FacebookFollow us on TwitterWatch Youtube VideosNCERT Solutions App

https://www.learncbse.in/mcq-questions-for-class-10-science-chemical-reactions-and-equations-with-answers/

Love u

Root-3

X=under hood 3

-root3

±3

-root3

Opposed

??????????????????????????????????????????????????

Copy means to make another thing like the original one and paste means to fix that copied one in one place

By using copy paste we are duplicating the object whereas in cut and paste we first cut(erase) the object from its initial place and then paste it somewhere else. So cut and paste is moving the object whereas copy and paste is duplicating the object. Hope this helps...

a supply of something, a piece of equipment, etc. that is available for somebody to use उपयोग के लिए उपलब्‍ध सामग्री; संसाधन Russia is rich in natural resources such as oil and minerals. Russia is rich in natural resources such as oil and minerals.

Option d

Assertion and reason are correct

D is correct

B is correct

Option a correct

11.2 excize

Open your book and see index and take out that and then do you work

Plz ans