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प्रश्न
Fill in the blank spaces by choosing the correct words from the given list.
List: amalgam, chlorine, gallium, sodium chloride, silver chloride
A solution of a metal in mercury is called ________
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उत्तर
A solution of a metal in mercury is called amalgam.
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संबंधित प्रश्न
Mark ‘T’ if the statement is true and ‘F’ if it is false.
Generally, non-metals react with acids. ( )
Name an alloy of lead and tin.
Give the composition of an alloy called solder. State its one property and one use.
Fill in the following blank with suitable word:
Brass is an alloy of copper and .........
Fill in the following blank with suitable word:
The electrical conductivity and melting point of an alloy is ........... than that of pure metals.
What is an alloy? Give two examples of alloys.
Write ‘true’ or ‘false’ for the following statement :
Silver is used to make electric cables.
Fill in the blank spaces by choosing the correct words from the given list.
List: amalgam, chlorine, gallium, sodium chloride, silver chloride
Salt of silver, such as ________ is used for making photographic films.
Statements given below are incorrect. Write the correct statements :
Bronze is a mixture of 10% copper, 80% zinc and 10% tin.
Tick (√) the most appropriate answer.
Graphite is used :
State two important uses of following metal:
Uses of aluminium
State the position of the following in the periodic table:
Alkali metals
With reference to the following metals state their use in daily life metal:
iron
With reference to the following metal state its use in daily life:
Magnesium
Name the following:
The chemical compound responsible for the green deposit on the surface of articles of copper.
Write scientific reason.
Meena’s mother uses lemon or tamarind for cleaning copper vessels turned greenish.
Which of the following metals can displace the other two metals from their salt solutions?
Match the following
| i. | Softest metal | a. | Copper |
| ii. | Hardest metal | b. | Sodium |
| iii. | Hardest non–metal | c. | Osmium |
| iv. | Ductility | d. | Diamond |
Compare the conductivity of metals and non–metals.
X [2, 8, 7] and Y [2, 8, 2] are two elements. Using this information, complete the following:
______ is the reducing agent.
