Advertisements
Advertisements
Question
Mention two uses of the following metals and non-metals
Iodine
Advertisements
Solution
It is used in photographic films in the form of potassium iodide.
It is added to salt to make it iodized salt which is necessary for the growth of human body.
APPEARS IN
RELATED QUESTIONS
State one use of the following metal:
Silver
The atomic number of an element Y is 16.
- What must an atom of Y do to achieve the nearest inert gas electron arrangement?
- Which inert gas is nearest to Y?
What is an amalgam?
What is a thermite reaction? Explain with the help of an equation.
How are the properties of an alloy different from those of the constituent elements?
State two important uses of following metal:
Uses of zinc
Give the general characteristics of:
Alkaline earth metals with reference to
(i) bonding
(ii) action of air
(iii) action of water
(iv) action of acid
Take an element from an alkali metal and one from an alkaline earth metal and write an equation for their action with:
Hydrochloric acid,
When a copper coin is dipped in silver nitrate solution, a glitter appears on the coin after some time. Why does this happen? Write the chemical equation.
Which is the non-ionic compound in the compounds given below.
AgNO3 + Nacl → AgCl + NaNO3
What is it made from? Why?
Pots and pans
With reference to the following metals state their use in daily life metal:
copper
With reference to the following metals state their use in daily life metal:
Aluminium
State a specific reason for using copper in electrical cables
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.
An amorphous substance which turns from pale green to black on strong heating evolving a colourless, acidic gas as the only gaseous product.
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?
Sodium is a hard metal.
Which metals are liquid at room temperature?
Compare the conductivity of metals and non–metals.
