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प्रश्न
Make pairs of substances and their properties
| Substance | Property |
| a. Potassium bromide (KBr) | 1. Combustible |
| b. Gold | 2. Soluble in water |
| c. Sulphur | 3. No chemical reaction |
| d. Neon | 4. High ductility. |
उत्तर
| Substance | Property |
| a. Potassium bromide (KBr) | 2. Soluble in water |
| b. Gold | 4. High ductility |
| c. Sulphur | 1. Combustible |
| d. Neon | 3. No chemical reaction |
संबंधित प्रश्न
"Is malleable and ductile". This best describes:
(a) a metal
(b) a compound
(c) a non-metal
(d) a solution
(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?
Name a metal used as a thermometric liquid
Name a metal which is poor conductor of electricity :
`Mg -— → Mg^(2+)`
Select from the following ist:
`Fe_2O_3, , NO, PbO, Mn_2O_7`
Neutral oxide ……………..
Name:
a metal which lacks ductility
Name:
a non metal which is lustrous
Explain how the activity series accounts for each of the following:
reaction with acids
Give the balanced reactions for the following:
Iron reacts with dilute HCI
Give the effect of heat on metal oxides based on the activity series ?
Identify the odd term.
Complete the statement given below, by filling in the blank with the correct word:
A metal which floats on water _____
Complete the statement given below, by filling in the blank with the correct word:
A non-metal added to swimming pools to kill germs_____.
Select the appropriate option for the following statement:
The element from the halogen family which is most abundant
The sound of one metal colliding with another makes a noise, this property is called as _______.
Find the odd one out and give its explanation.
A form of non-metal which has high ductility is
Non – metals are ______.
Compounds obtained from non–living sources are called ______.
