MCQ Questions | Class 10 Science Chapter 3 | Metals and Non-metals with Answers

MCQ | Class 10 Science Chapter 3 | Metals and Non-metals Set A

Check the below NCERT MCQ Questions for Class 10 Science Chapter 3 Metals and Non-metals with Answers Pdf free download. MCQ Questions for Class 10 Science with Answers were prepared based on the latest exam pattern. We have Provided Metals and Non-metals Class 10 Science MCQs Questions with Answers to help students understand the concept very well.

Objective Question | Science Class 10 Chapter 3

NCERT Solutions Class 10 Science
Book:	National Council of Educational Research and Training (NCERT)
Board:	Central Board of Secondary Education (CBSE)
Class:	10th
Subject:	Science
Chapter:	3
Chapters Name:	Metals and Non-metals
Medium:	English

Class 10th Science Book | Objective Type Questions

You can refer to NCERT Solutions for Class 10 Science Chapter 3 Metals and Non-metals to revise the concepts in the syllabus effectively and improve your chances of securing high marks in your board exams.

Metals and Non-metals | Class 10 Science | NCERT Solutions

Q1.	Chemically rust is
	A. Hydrated ferrous oxide
	B. Hydrated ferric oxide
	C. only ferric oxide
	D. none of these

Ans: Hydrated ferric oxide

Q2.	Setting of Plaster of Paris takes place due to
	A. Solder
	B. Bronze
	C. Brass
	D. Bell metal

Ans: Solder

Q3.	Heating pyrites to remove sulphur is called
	A. Smelting
	B. Calcination
	C. Liquation
	D. Roasting

Ans: Roasting

Q4.	The atomic number of an element ‘X’ is 12. Which inert gas is nearest to X?
	A. He
	B. Ar
	C. Ne
	D. Kr

Ans: Ne

Q5.	During smelting, an additional substance is added which combines with impurities to form a fusible product. It is known as
	A. Slag
	B. Mud
	C. Gangue
	D. Flux

Ans: Flux

Q6.	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
	D. Y₂₃Z

Ans: YZ

Q7.	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

Ans: Na

Q8.	Galvanisation is a method of protecting iron from grudging by coating with a thin layer of
	A. Galium
	B. Aluminium
	C. Zinc
	D. Silver

Ans: Zinc

Q9.	The electronic configurations of three elements 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

Ans: Z is a non-metal

Q10.	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

Ans: Basic Copper carbonate

Q11.	Which of the statements about the reaction, ZnO + CO → Zn + CO₂ is correct ?
	A. ZnO is being oxidised
	B. CO is being reduced
	C. CO₂ is being oxidised
	D. ZnO is being reduced

Ans: ZnO is being reduced

Q12.	In extraction of copper, the flux used is
	A. CaO
	B. SiO₂
	C. FeO
	D. FeSiO₃

Ans: SiO₂

Q13.	Metal always found in free state is:
	A. Gold
	B. Silver
	C. Copper
	D. Sodium

Ans: Gold

Q14.	The earthy impurities associated with mineral used in metallurgy are called
	A. Slag
	B. Flux
	C. Gangue
	D. Ore

Ans: Gangue

Q15.	A mineral is known as ore if metal
	A. Cannot be produced from it
	B. Can be produced from it
	C. Can be extracted from it profitably
	D. Is very costly

Ans: Can be extracted from it profitably

Q16.	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

Ans: Sodium > Magnesium > Zinc > Iron

Q17.	Al₂O₃ + 2NaOH → …… + H₂O
	A. Al(OH)₃
	B. Na₂O
	C. NaAlO₂
	D. AlNaO₂

Ans: NaAlO₂

Q18.	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

Ans: they can share electrons with chlorine

Q19.	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

Ans: electrolysis of their molten chloride

Q20.	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