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प्रश्न
Aluminium is not used to make :
पर्याय
Foils
Wires
Fireworks
Utensils
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उत्तर
Fireworks
APPEARS IN
संबंधित प्रश्न
Fill in the blanks:
Metals react with acids to produce _________ gas.
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.
Give a reason for the following:
Alkali metals are good reducing agents.
What is a thermite reaction? Explain with the help of an equation.
Mention two uses of the following metals and non-metals
Iodine
Fill in the blank
A metal that gives dazzling effect to crackers when they explode is ______
Statements given below are incorrect. Write the correct statements :
Bronze is a mixture of 10% copper, 80% zinc and 10% tin.
State two important uses of following metal:
Uses of gold
State two important uses of the following metal.
Uses of magnesium
State the position of the following in the periodic table:
Alkaline earth metals
State the position of the following in the periodic table:
Aluminium
Give a reason why iron objects rust easily but the iron pillar at Qutab Minar has not rusted over the years.
Soft metal : Na : : hard metal : _______
Write scientific reason.
Meena’s mother uses lemon or tamarind for cleaning copper vessels turned greenish.
Which one of the following is an example for a metal?
A is a reddish-brown metal, which combines with O2 at < 1370 K gives B, a black coloured compound. At a temperature > 1370 K, A gives C which is red in colour. Find A, B, and C with reaction.
Generally, metals are solid in nature. Which one of the following metals is found in a liquid state at room temperature?
Metals and non–metals are used for making ______, ______ and ______.
Match the following
| i. | Silica | a. | Caustic potash |
| ii. | Potassium hydroxide | b. | Sand |
| iii. | Sodium hydroxide | c. | Calamine |
| iv. | Zinc carbonate | d. | Caustic soda |
