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प्रश्न
Name the following:
A halogen which is a solid at room temperature.
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उत्तर
Iodine
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संबंधित प्रश्न
Name an alloy of lead and tin.
Mention two uses of the following metals and non-metals
Aluminium
Fill in the blank
_______ is a soft metal.
A metal with melting point less than 50°C is
State two important uses of following metal:
Uses of silver
Write name.
The nonmetal having electrical conductivity.
Molecular formula of the chloride of an element X is XCl. This compound is a solid having high melting point. Write name of any element present in the same group as X
Which is the non-ionic compound in the compounds given below.
AgNO3 + Nacl → AgCl + NaNO3
Match the alloys given in column I to the uses given in column II :
| Column I | Column II |
| (i) Duralumin | A. Electrical fuse |
| (ii) Solder | B. Surgical instruments |
| (iii) Brass | C. Aircraft body |
| (iv) Stainless Steel | D. Decorative articles |
What is it made from? Why?
A pair of tongs.
With reference to the following metals state their use in daily life metal:
copper
Halogen reacts with acid.
Write scientific reason.
Meena’s mother uses lemon or tamarind for cleaning copper vessels turned greenish.
The metal which is liquid at room temperature is ______.
An element forms an oxide A2O3 which is acidic in nature. Identify A as a metal or non-metal.
Which of the following is not a metal?
All gases are ______.
Which metals are liquid at room temperature?
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 metallic element.
