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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
Fill in the blanks:
Metals react with acids to produce _________ gas.
State one use of Mercury.
Name an alloy of lead and tin.
Which property of 'solder' alloy makes it suitable for welding electrical wires?
What is a thermite reaction? Explain with the help of an equation. State one use of this reaction.
What is meant by 22 carat gold? Name the metals which are usually alloyed with gold to make it harder.
Give reasons
Gold is mixed with copper and nickel.
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 tin
State two important uses of following metal:
Uses of aluminium
State two important uses of following metal
Uses of lead
Take an element from an alkali metal and one from an alkaline earth metal and write an equation for their action with:
Water.
Name the following:
The most reactive halogen.
Electronic configuration of metal A is 2,8,1. Electronic configuration of metal B is 2,8,8,2. Which of the above metals is more reactive? Explain with reason.
Complete the following flow chart.
Why are bells made of metals?
Which of the following two combinations are correct?
| Metal | Gas Evolved | |
| (i) | Copper | Yes |
| (ii) | Iron | Yes |
| (iii) | Magnesium | No |
| (iv) | Zinc | Yes |
An element forms an oxide A2O3 which is acidic in nature. Identify A as a metal or non-metal.
Match the following
| i. | Softest metal | a. | Copper |
| ii. | Hardest metal | b. | Sodium |
| iii. | Hardest non–metal | c. | Osmium |
| iv. | Ductility | d. | Diamond |
