Advertisements
Advertisements
प्रश्न
State whether the statement given below is true or false. If false write the correct statement.
The chemical name of rust is iron [III] oxide.
विकल्प
True
False
उत्तर
True.
APPEARS IN
संबंधित प्रश्न
Which of the following can be beaten into thin sheets?
Give the name and formulae of two acidic oxides.
Name one property which is characteristic of metals.
State five uses of non-metals.
Name a non-metal having lustre (shining surface).
Which of the following non-metal is a liquid?
(a) carbon
(b) sulphur
(c) bromine
(d) iodine
(a) Give the names and formulae of one metal chloride and one non-metal chloride.
(b) State an important property in which these metal chloride and non-metal chloride differ.
(c) Why do they differ in this property?
Give reasons
Tungsten is used in electric bulbs.
State any five physical properties of a metal.
Physical properties of a metal :
State two important uses of following non-metal
Uses of chlorine
Name the three classes in which elements are classified. Which was the first metal used by man?
Select from the following ist:
`Fe_2O_3, , NO, PbO, Mn_2O_7`
Acidic oxide ………………
Name:
a non metal which can form a positive ion
From the list of characteristics given below, select the five which are relevant to non-metals and their compounds:
- Ductile
- Conduct electricity
- Brittle
- Acidic Oxides
- Basic Oxides
- Discharged at anode
- Discharged at cathode
- Ionic chlorides
- Covalent chlorides
- Reaction with dilute sulphuric acid yields hydrogen
- 1, 2 or 3 valence electrons
- 5, 6, 7 valence electrons
(Write the five letters corresponding to the correct characteristics).
Which metal occurs as a sulphide also gives the name of their respective ore.
Complete the statement given below, by filling in the blank with the correct word:
A non-metal that leaves a mark on paper _______
Select the appropriate option for the following statement:
The element from the halogen family which is most abundant
Find the odd one out and give its explanation.
Which non-metal is essential for our life and all living beings?
