Ans.
i.
The
concentrated copper sulphide ore is roasted in air when a part of copper
sulphide is oxidized to copper oxide.
Copper oxide formed above reacts with the remaining copper sulphide to form copper metal and sulphur dioxide.
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Kids Worksheets
English
Cursive Writing – Small Letters
Write the First Letter of Given Picture
Circle the Correct Letter Worksheets
Circle the Cursive Letter Worksheets
Match the Letter with Correct Picture
Match the Picture with Cursive Letter
Circle two pictures that begin with same letter sound
Circle two pictures that begin with same letter sound (Cursive)
Look and write with vowels a, e, i, o, u
Reading Passages.
Story PDF.
Goldilocks and the Three Bears
Mathematics.
Fill in the Missing Number Worksheets
Multiplication Sheet practice for Children
Counting practice from 1 to 100 Worksheet
Science.
UKG Worksheets
Geography.
Hindi
Hindi Alphabets. (Swar)
Hindi Alphabets. (Vanjan)
Colours name in Hindi | रंगों के नाम
Fruits name in Hindi | फलों के नाम
Vegetables name in Hindi | सब्जियों के नाम
Hindi Vyanjan Tracing Worksheets
Write the First Letter of picture - Hindi Swar Worksheets
Look and Match - Hindi Swar Worksheets
Circle the correct letter - Hindi Swar Worksheets
Write the first letter - Hindi Vyanjan Worksheets
Circle the Correct Letter - Vyanjan Worksheets
Choose the Right Image - Vyanjan Worksheets
Miscellaneous Hindi Worksheets
2 Letter Words Hindi Worksheets
3 Letter Words Hindi Worksheets
4 Letter Words Hindi Worksheets
AA (ा) – AA ki Matra | आ (ा) की मात्रा
i ( ि) - i ki Matra | इ ( ि) की मात्रा
EE ( ी) – EE ki Matra | ई ( ी) की मात्रा
U (ु) - U ki Matra | उ (ु) की मात्रा
O (ू ) – OO ki Matra | ऊ (ू) की मात्रा
E ( े) - E ki Matra | ए ( े ) की मात्रा
AI (ै) - AI ki Matra | ऐ (ै)की मात्रा
o ( ो) - o ki Matra | ओ (ो) की मात्रा
ou ( ौ) - ou ki Matra | औ ( ौ) की मात्रा
General Knowledge.
Match the following.
Match the fruit to its shadow. [5 Pages]
Match Letters [35 Pages]
Match the uppercase letter to its lowercase [6 Pages]
Games.
Literature.
Cursive Alphabet Trace and Write
Letters A to G Upper and Lower Case Tracing Worksheet.
Beginning Sounds. Kindergarten Worksheet
Cursive Writing Small Letters.
Consonant Vowel Consonant (CVC) Flashcards
Coloring.
English Alphabet Color it and Match it with Pictures.
Alphabet Color it. [26 Pages]
Alphabet Color it 2. [7 Pages]
Numbers PDF.
Numbers 1 to 10 Color it. [2 Pages]
1 to 10 Numbers Coloring. [4 Pages]
Flash Cards PDF.
Tell the Time Flash Cards [6 Pages]
Flashcards English vocabulary [12 Pages]
Alphabet Letters with Pictures [5 Pages]
Numbers Flash Cards. [5 Pages]
English Alphabet Learning Flash Cards. [26 Pages]
Alphabet Flashcards. [26 Pages]
Alphabet Identification Flash Cards. [26 Pages]
….
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