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प्रश्न
Write ‘true’ or ‘false’ for the following statement :
Silver is used to make electric cables.
पर्याय
True
False
उत्तर
False
APPEARS IN
संबंधित प्रश्न
Fill in the blanks:
Metals react with acids to produce _________ gas.
Write the name and formulae of a metal hydride.
State one use of Copper.
Fill in the blank
A metal that gives dazzling effect to crackers when they explode is ______
State two important uses of following metal
Uses of copper
State the position of the following in the periodic table:
Alkaline earth metals
Take an element from an alkali metal and one from an alkaline earth metal and write an equation for their action with:
Sulphuric acid
Why are alkali metals kept in kerosene oil?
With reference to the following metals state their use in daily life metal:
Lead
With reference to the following metals state their use in daily life metal:
Silver
Give a reason why a green deposit is seen on the surface of an article of copper
Soft metal : Na : : hard metal : _______
Can you store pickle in an aluminium utensil? Give reason.
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.
Which of the following metals are obtained by electrolysis of their chlorides in molten state?
- Na
- Ca
- Fe
- Cu
Name two soft metals which can be cut with a knife.
Sodium is a hard metal.
Which metal has the highest ductility?
X [2, 8, 7] and Y [2, 8, 2] are two elements. Using this information, complete the following:
______ is the metallic element.
X [2, 8, 7] and Y [2, 8, 2] are two elements. Using this information, complete the following:
______ is the reducing agent.
