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प्रश्न
Select the correct answer to the statement given below:
A non-metal which exists in the liquid state.
विकल्प
Chalk
Oxygen
Silicon
Bromine
Nitrous oxide
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उत्तर
Bromine
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संबंधित प्रश्न
Give one example for the following types of mixtures:
liquid-gas homogenous mixture
Name: a non-metal which is lustrous
State the number of atoms of each element, present in \[\ce{HNO3}\].
Also name the compound.
Name: Three different forms of carbon
Give one use of the following substance:
Coal
Answer the following question:
When iron is mixed with sulphur at room temperature, it does not form a compound. Why?
Tick (√) the correct alternative from the choice given for the following statement.
Sugar is a compound which consists of the elements
Tick (√) the correct alternative from the choice given for the following statement.
The compound used as common salt is
Elements are classified into – Metals – Non-metals – Metalloids – Noble gases. State which of A, B, C, D is a –
1. Metallic element
2. Non-metallic element
3. Metalloid
4. Noble gas.
A: Is non-malleable, non-ductile & a poor conductor of electricity ___________
B: Has lustre, is malleable and ductile & a good conductor of heat ___________
C: Is unreactive and inert and present in traces in the air _________
D: Shows properties of both metals and non-metals ___________
Give the name of the radical - NO3
Complete the statement given below by filling in the blanks with the correct words.
Atom contains ________ , with positively charged _____.
Select the correct answer from the choice given below.
The negatively charged particles in an atom
Select the correct answer from the choice given below.
An element which is a poor conductor of heat
There are ______ number of known elements.
Higher Order Thinking Skills.
List out the metals, non-metals and metalloids which you use in your house, schools. Compare their properties.
Match the following.
| Atom | Building block of matter |
| Element | Atoms of different kinds |
| Compound | Atoms of the same kind |
| Molecule | Smallest unit of a substance |
Why are utensils made up of aluminium and brass?
Give two example of elements.
Name the process associated with the following
A fine beam of light entering through a small hole in a dark room illuminates the particles in its paths.
Matter is its simplest form is called ______.
