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Metals and Non-metals

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romiroy12
Give the formulae of the stable binary compounds that would be formed by the combination o...
By romiroy12, 5 years ago
replies 1
0
1
133
romiroy12
A metal that exists as liquid at room temperature is obtained by heating its sulphide in t...
By romiroy12, 5 years ago
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253
romiroy12
The following reaction takes place when aluminium powder is heated with MnO2 : 3MnO2(s) + ...
By romiroy12, 5 years ago
replies 1
0
1
150
romiroy12
A non-metal ‘X’ exists in two different forms ‘Y’ and ‘Z'. ‘Y’ is hardest natural substanc...
By romiroy12, 5 years ago
replies 1
0
1
153
romiroy12
When a metal ‘X’ is treated with cold water, It gives base salt ‘X’ with molecular formula...
By romiroy12, 5 years ago
replies 1
0
1
138
romiroy12
A solution of CuSO4 was kept in an iron pot. After few days, the iron pot was found to hav...
By romiroy12, 5 years ago
replies 1
0
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110
romiroy12
A metal M does not liberate hydrogen from acids but reacts reacts with oxygen to give a bl...
By romiroy12, 5 years ago
replies 1
0
1
153
romiroy12
An element A reacts with water to form a compound B which is used in white washing. The co...
By romiroy12, 5 years ago
replies 1
0
1
137
romiroy12
A non-metal A is an important constituent of our food and forms two oxides B and C. Oxide ...
By romiroy12, 5 years ago
replies 1
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1
146
romiroy12
What happens when (a) ZnCO3 is heated in the absence of oxygen? (b) a mixture of Cu2O and ...
By romiroy12, 5 years ago
replies 1
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