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प्रश्न
Aluminium is not used to make :
पर्याय
Foils
Wires
Fireworks
Utensils
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उत्तर
Fireworks
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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.
Write the name and formula of a metal hydride.
State five uses of metals.
State one use of the following metal:
Gold
State two important uses of the following metal.
Uses of magnesium
Give the general characteristics of:
Alkali metals,
(i) bonding
(ii) action of air
(iii) action of water
(iv) action of acid
Why is hydrogen placed with alkali metals?
Take an element from an alkali metal and one from an alkaline earth metal and write an equation for their action with:
Oxygen
Write scientific reason.
Pine oil is used in froth flotation.
Give reasons for the following:
Most metals conduct electricity well.
With reference to the following metals state their use in daily life metal:
copper
State why telegraph poles are painted with aluminium paint.
On heating which of the following substances i.e. copper carbonate, zinc carbonate, washing soda, copper sulphate, zinc nitrate, copper nitrate, lead nitrate, ammonium chloride and ammonium dichromate – relate to the reaction given below.
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.
The metal which is liquid at room temperature is ______.
Can you store pickle in an aluminium utensil? Give reason.
The electronic configurations of three elements X, Y and Z are X – 2, 8; Y – 2, 8, 7 and Z – 2, 8, 2. Which of the following is correct?
Metals are usually solids or gases at room temperature.
Give an example of a metal which
- is liquid at room temperature.
- is the best conductor of heat.
X [2, 8, 7] and Y [2, 8, 2] are two elements. Using this information, complete the following:
______ is the metallic element.
