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प्रश्न
An element which is always lustrous, malleable and ductile is ______.
विकल्प
non-metal
metal
metalloid
gas
उत्तर
An element which is always lustrous, malleable and ductile is metal.
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संबंधित प्रश्न
Saloni took a piece of burning charcoal and collected the gas evolved in a test tube.
(a) How will she find the nature of the gas?
(b) Write down word equations of all the reactions taking place in this process.
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(a) stainless steel
(b) solder
(c) duralumin
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Mention two uses of the following metals and non-metals
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A white crystalline solid which decrepitates on heating leaving a residue which fuses with the glass and evolves two gases one of which is coloured and acidic.
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Higher Order Thinking Skills.
Aakash noticed that the metal latch on gate was difficult to open during hot sunny days. However, it was not difficult to open the same latch at night. Aakash observed that the latch and the gate are exposed to the sun during day time.
- Formulate a hypothesis based on the information provided.
- Briefly state how you would test the hypothesis.
Why are bells made of metals?
