Advertisements
Advertisements
प्रश्न
Halogen reacts with acid.
विकल्प
Right
Wrong
उत्तर
Halogen reacts with acid- Right
APPEARS IN
संबंधित प्रश्न
What happens when Dilute sulphuric acid is poured on a copper plate?
Write word equations of the reactions involved.
Fill in the following blank with suitable word:
Brass is an alloy of copper and .........
For the reduction of metal oxide, suggest a reducing agent other than carbon.
How are the properties of an alloy different from those of the constitutent elements?
Fill in the blank
_______ is a soft metal.
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 ________
Write ‘True’ or ‘False’ in front of following statement.
Brass is an alloy of copper and zinc and has lustrous yellow colour.
State two important uses of following metal:
Uses of gold
State two important uses of following metal
Uses of tin
State two important uses of following metal
Uses of lead
State the position of the following in the periodic table:
Alkali metals
State the position of the following in the periodic table:
Iron and zinc
Take an element from an alkali metal and one from an alkaline earth metal and write an equation for their action with:
Hydrochloric acid,
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?
Electric cables
With reference to the following metals state their use in daily life metal:
copper
Name the following:
The chemical compound responsible for the green deposit on the surface of articles of copper.
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 one of the following four metals would be displaced from the solution of its salts by other three metals?
All gases are ______.
