Advertisements
Advertisements
Question
State two important uses of following metal
Uses of magnesium
Advertisements
Solution
Uses of magnesium :
- It bums with dazzling white flame and hence is used in fire works.
- It is used in the making of alloys, such as magnalium. This alloy is used in making frame of aeroplanes.
APPEARS IN
RELATED QUESTIONS
Fill in the blanks:
Metals react with acids to produce _________ gas.
Give reasons for the following.
Sodium and potassium are stored in kerosene.
State one use of Mercury.
Give the composition of an alloy called solder. State its one property and one use.
Mention two uses of the following metals and non-metals
Aluminium
A metal with melting point less than 50°C is
State two important uses of following metal
Uses of tin
The electronic configuration of metal ‘A’ is 2,8,1 and that of metal ‘B’ is 2,8,2. Which of the two metals is more reactive? Write their reaction with dilute hydrochloric acid.
With reference to the following metals state their use in daily life metal:
Zinc
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
Name the following:
A metal used in packaging.
The minerals from which the metal can be separated economically are called _______.
Higher Order Thinking Skills.
Aakash noticed that the metal latch on gate was difficult to open during hot sunny days. However, it was not difficult to open the same latch at night. Aakash observed that the latch and the gate are exposed to the sun during day time.
- Formulate a hypothesis based on the information provided.
- Briefly state how you would test the hypothesis.
Metals are usually solids or gases at room temperature.
Give an example of a metal which
- is liquid at room temperature.
- is the best conductor of heat.
Why are bells made of metals?
The liquid metal at room temperature ______.
Metals and non–metals are used for making ______, ______ and ______.
X [2, 8, 7] and Y [2, 8, 2] are two elements. Using this information, complete the following:
Metal atoms tend to have a maximum of ______ electrons in the outermost shell.
