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Metals and Non-metals

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romiroy12
Two ores A and B were taken. On heating, ore A gives CO2 whereas, ore B gives SO2. What st...
By romiroy12, 5 years ago
replies 1
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275
romiroy12
Give the steps involved in the extraction of metals of low and medium reactivity from thei...
By romiroy12, 5 years ago
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192
romiroy12
An element A burns with golden flame in air. It reacts with another element B, atomic numb...
By romiroy12, 5 years ago
replies 1
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152
romiroy12
Explain the following: (a) Reactivity of Al decreases if it is dipped in HNO3. (b) Carbon ...
By romiroy12, 5 years ago
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1
207
romiroy12
A non-metal A which is the largest constituent of air, when heated with H2 in 1 : 3 ratio ...
By romiroy12, 5 years ago
replies 1
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178
romiroy12
An element forms an oxide, A2O3 which is acidic in nature. Identify A as a metal or non-me...
By romiroy12, 5 years ago
replies 1
0
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168
romiroy12
Give the reaction involved during extraction of zinc from its ore by (a) roasting of zinc ...
By romiroy12, 5 years ago
replies 1
0
1
144
romiroy12
An alkali metal A gives a compound B (molecular mass = 40) on reacting with water. The com...
By romiroy12, 5 years ago
replies 1
0
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183
romiroy12
Name one metal and one non-metal that exist in liquid state at room temperature. Also, nam...
By romiroy12, 5 years ago
replies 1
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151
romiroy12
Give two examples each of the metals that are good conductors and poor conductors of heat ...
By romiroy12, 5 years ago
replies 1
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