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Metals and Non-metals

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romiroy12
A metal A, which is used in thermite process, when heated with oxygen gives an oxide B, wh...
By romiroy12, 5 years ago
replies 1
0
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140
romiroy12
What are the constituents of solder alloy? Which property of solder makes it suitable for ...
By romiroy12, 5 years ago
replies 1
0
1
154
romiroy12
Compound X and aluminium are used to join railway tracks. (a) Identify the compound X. (b)...
By romiroy12, 5 years ago
replies 1
0
1
124
romiroy12
Generally, when metals are treated with mineral acids, hydrogen gas is liberated but when ...
By romiroy12, 5 years ago
replies 1
0
1
121
romiroy12
During extraction of metals, electrolytic refining is used to obtain pure metals. (a) Whic...
By romiroy12, 5 years ago
replies 1
0
1
146
romiroy12
Iqbal treated a lustrous, divalent element M with sodium hydroxide. He observed the format...
By romiroy12, 5 years ago
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255
romiroy12
Distinguish between ionic and covalent compounds under the following properties: (i) Stren...
By romiroy12, 5 years ago
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0
1
164
romiroy12
(a) What is meant by corrosion? Name any two methods used for the prevention of corrosion....
By romiroy12, 5 years ago
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0
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142
romiroy12
State reasons for the following: (i) Electric wires are covered with rubber like material....
By romiroy12, 5 years ago
replies 1
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165
romiroy12
State reasons for the following observations: (i) The shining surface of some metals becom...
By romiroy12, 5 years ago
replies 1
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