Top Banner
26

Miscellaneous chemistry - Amar Ujala

Feb 22, 2022

Download

Documents

dariahiddleston
Welcome message from author
This document is posted to help you gain knowledge. Please leave a comment to let me know what you think about it! Share it to your friends and learn new things together.
Transcript
Page 1: Miscellaneous chemistry - Amar Ujala
Page 2: Miscellaneous chemistry - Amar Ujala

Miscellaneous chemistry

Page 3: Miscellaneous chemistry - Amar Ujala
Page 4: Miscellaneous chemistry - Amar Ujala

METALS (धातु)

• Majority elements in the periodic table are metals. This includes alkali metals, transition metals, lanthanides, actinides and alkaline earth metals.

• आवतत सारणी में अधधकाांश तत्व धातु हैं। इसमें क्षार धातु, सांक्रमण धात,ु लैंथेनाइड,

एक्टिनाइड और क्षारीय पथृ्वी धातु शाममल हैं।

Page 5: Miscellaneous chemistry - Amar Ujala

Properties of Metals

• Shiny (lustrous) in nature

• Metal is a good conductor of electricity and heat

• Density and melting point is high

• Mouldable (Malleable)

• Ductile

• At room temperature, it is in solid form except for mercury

• Opaque

Page 6: Miscellaneous chemistry - Amar Ujala

Chemical Properties of Metals

• Easily corrodible

• Can lose electrons

• Form basic oxides

• Have low electronegativities

• Good reducing agents

Page 7: Miscellaneous chemistry - Amar Ujala

Non metals (अधातु)

In the periodic table, non-metals are located left of the halogens and to the right of the metalloids. Since noble gases and halogens are also non-metals, these elements are often referred to as non-metals.

आवतत सारणी में, गैर-धातुएां हैलोजेन के बाईं ओर और धातु के दाईं ओर क्थथत होती हैं। च ूँकक गैसें और हैलोजन भी अधातु होती हैं, इसमलए इन तत्वों को अटसर अधातु कहा जाता है।

Page 8: Miscellaneous chemistry - Amar Ujala

Physical Properties of Non-metals

• Poor conductors of electricity and heat

• Non-Ductile metals

• Brittle solids

• Maybe solids, liquids or gases at room temperature

• These are not sonorous

• Transparent

Page 9: Miscellaneous chemistry - Amar Ujala

Chemical Properties of Non-metals

• The number of electrons in the outer shell is generally 4-8

• Easily gain or lose valence electrons

• Form acidic oxides whenever they come in contact with oxygen

• High electronegative elements

• Great oxidizing agents

Page 10: Miscellaneous chemistry - Amar Ujala
Page 11: Miscellaneous chemistry - Amar Ujala
Page 12: Miscellaneous chemistry - Amar Ujala
Page 13: Miscellaneous chemistry - Amar Ujala
Page 14: Miscellaneous chemistry - Amar Ujala
Page 15: Miscellaneous chemistry - Amar Ujala
Page 16: Miscellaneous chemistry - Amar Ujala
Page 17: Miscellaneous chemistry - Amar Ujala
Page 18: Miscellaneous chemistry - Amar Ujala
Page 19: Miscellaneous chemistry - Amar Ujala
Page 20: Miscellaneous chemistry - Amar Ujala

ALLOYS AND ITS USES

Page 21: Miscellaneous chemistry - Amar Ujala

ALLOYS (ममधित धातु)

• Alloys are a mixture of two or more metals or a metal and a non metal and can not be separated into their components by any physical method.

• ममि धातु दो या दो से अधधक धातुओां या एक धातु और एक अधातु का ममिण है और इन्हें ककसी भी भौततक ववधध द्वारा अपने घिकों में अलग नहीां ककया जा सकता है।

Page 22: Miscellaneous chemistry - Amar Ujala

• Alloy is a homogeneous mixture that is solid to solid solution.

• ममि धातु एक सजातीय ममिण है।

• It shows the property of its constituents and can have variable composition.

• यह अपने घिकों की गुण ददखाता है और इसमें पररवततनशील सांरचना हो सकती है।

Page 23: Miscellaneous chemistry - Amar Ujala
Page 24: Miscellaneous chemistry - Amar Ujala
Page 25: Miscellaneous chemistry - Amar Ujala

Don’t Forget to Like / Comment & Share this

video

25

Page 26: Miscellaneous chemistry - Amar Ujala

www.Youtube.com/safaltaclass

www.Facebook.com/safaltaclass

www.Instagram.com/safaltaclass

SAFALTACLASS

26