NCERT Solutions For Class 10 Science Chapter 3: Metals and Non-metals

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NCERT Solutions for class 10 Science Chapter 3 Metals and Non-metals are provided in the article below. Some of the important topics in Metals and Non metals chapter include:

No of Expected questions: 2 to 3 questions for a total of 5 marks

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NCERT Solutions for Class 10 Science Chapter 3

NCERT Solutions for Class 10 Science Chapter 3 Metals and Non-metals is given below.

Class 10 Science Chapter 3 Metals and Non-metals – Important Topics

Metals: Metals are shiny, hard materials which are good conductors of heat and electricity. They are also malleable and ductile. Examples include Sodium, iron, gold, copper, silver.

Non-metals: Non-metals are usually rough, non-malleable, non-ductile and poor conductors of electricity. Examples include chlorine, fluorine, phosphorus, noble gases, etc.

The order of intensity or the reactivity of metal is arranged to give the Reactivity Series. Reactivity of elements decreases on moving from top to bottom of the series. The reactivity of metals in decreasing order is given below.

K>Na>Ca>Mg>Al>Zn>Fe>Pb>Cu

Metals react with non-metals to form ionic bonds. Compounds so formed are known as Ionic Compounds. Ions are formed when an atom gains or loses an electron.

Example of ionic bonds: Sodium reacts with chlorine to form Sodium chloride which is held together by ionic bonds.

Elements that exhibit the characteristics of both metals and non-metals are called metalloids.

Related Articles:

Alloys	Thermal Conductivity	Aluminium Sulphate
Nickel Sulphate	Reactivity Series	Amphoteric Oxides
NCERT Solutions for Class 10 Science	Class 10 Science Important questions	Class 10 Science Syllabus

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Basic Chemistry	Chemistry Formulas	Class 10 Science Notes

CBSE X Related Questions

1.
The gases evolved on heating lead (II) nitrate crystals are :
- NO and \( O_2 \uparrow \)
- \( N_2 \) and \( NO_2 \)
- \( NO_2 \) and \( H_2 \)
- \( NO_2 \) and \( O_2 \)
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2.
The natural sources of oxalic acid, lactic acid and methanoic acid respectively are:
- tomato, curd, ant-sting
- tomato, orange, nettle-sting
- orange, milk, ant-sting
- orange, sour milk, nettle-sting
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3.
Assertion (A): Carbon shares its valence electrons with other atoms of carbon or with atoms of other elements.
Reason (R): The shared electrons belong to the outermost shells of both the atoms and lead to both atoms attaining the noble gas configuration.
- Both Assertion (A) and Reason (R) are true and Reason (R) is the correct explanation of the Assertion (A).
- Both Assertion (A) and Reason (R) are true, but Reason (R) is not the correct explanation of the Assertion (A).
- Assertion (A) is true, but Reason (R) is false.
- Assertion (A) is false, but Reason (R) is true.
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4.
Which structure in a leaf is mainly responsible for gaseous exchange?
- Xylem
- Stomata
- Phloem
- Cuticle
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5.
(i) \( \text{AgNO}_3 + \text{NaCl} \rightarrow \text{NaNO}_3 + \text{AgCl} \)
(ii) \( \text{K}_2\text{SO}_4 + \text{BaCl}_2 \rightarrow \text{BaSO}_4 + 2\text{KCl} \)
Which of the following options clearly describes both the reactions?
- (i) is double displacement, (ii) is displacement reaction.
- Both, (i) and (ii) are displacement reactions and precipitation reactions.
- Both, (i) and (ii) are double displacement reactions and precipitation reactions.
- (i) is displacement, (ii) is double displacement reaction.
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6.
On reaction with dilute HCl, which of the following pair of metals will evolve hydrogen gas?
- Copper and zinc
- Copper and iron
- Silver and magnesium
- Magnesium and aluminium
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