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प्रश्न
The important physical properties of substances are colour, odour, nature, density & solubility in water.
Name - a poisonous gas almost as heavy as air.
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उत्तर
A poisonous gas almost as heavy as air is Carbon monoxide
संबंधित प्रश्न
Fill in the blank
Use of a ................. to separate the components of a mixture of solids is based on the difference in the size of the components
Name the substance you will add to speed up sedimentation.
Tick the most appropriate answer.
How many times is a proton heavier than an electron?
- 1500
- 1800
- 1840
- none of these
Give the symbols of: Carbon, calcium, copper, chlorine, cobalt, argon.
Find the atomicity of the Following molecule:
Carbon Monoxide
Tick (√) the correct alternative from the choice given for the following statement.
Gold is used to make jewellery because
Tick (√) the correct alternative from the choice given for the following statement.
The most abundant elements in the universe are
Write the names of elements from the following symbol:
Cu
Select the correct answer to the statement given below:
A metalloid
Name the constituents of water.
