Advertisements
Advertisements
प्रश्न
State whether the statement given below is true or false. If false write the correct statement.
Lead pencils contain lead.
विकल्प
True
False
उत्तर
False.
Correct statement: Lead pencils contain graphite.
APPEARS IN
संबंधित प्रश्न
Explain the meaning of malleable.
Which of the following statements is correct?
Give reasons for the following.
Aluminium foils are used to wrap food items.
If an element has a low ionization energy then it is likely to be ______________ (metallic / non metallic).
Name two non-metals which are both brittle and non-ductile.
Which property of iron metal is utilised in producing iron sheets required fro making buckets?
What is the nature of the oxide SO2? What happens when it is dissolved in water? Write the chemical equation of the reaction involved.
State any three differences between the physical properties of metals and non-metals.
Which of the following non-metal is a liquid?
(a) carbon
(b) sulphur
(c) bromine
(d) iodine
Statements given below are incorrect. Write the correct statements :
Chlorine gas is used in the manufacture of sulphuric acid.
How many valence electrons are present in:
(i) metals and
What are the metals that make the alloys brass and bronze?
Fill in the Blank and Rewrite the Statements:
Elements showing properties of both metals and nonmetals are known as _________.
Complete the statement given below, by filling in the blank with the correct word:
A non-metal that leaves a mark on paper _______
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.
_______ is basic oxide.
Tabulate the differences between metals and non-metals.
A non-metal A is an important constituent of our food and forms two oxides B and C. Oxide B is toxic whereas C causes global warming
- Identify A, B and C
- To which Group of Periodic Table does A belong?
Which non-metal is essential for our life and all living beings inhale it during breathing?
The metal is stored in kerosene ______.
