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प्रश्न
Select the correct answer to the statement given below:
The chemical name for dinitrogen oxide [N20].
पर्याय
Chalk
Oxygen
Silicon
Bromine
Nitrous oxide
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उत्तर
Nitrous oxide
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संबंधित प्रश्न
Define: Elements
Give one example for the following types of mixtures:
liquid-gas homogenous mixture
What are the advantages of chromatography?
Name: an Inert Gas
Define a pure substance. How many types of pure substances do you know?
Give one use of the following substance:
Iron
Answer the following question:
Why are copper and aluminium used to make electric wires?
Answer the following question:
Give the advantages of using symbols instead of names of elements or compounds.
Find the atomicity of the Following molecule:
Calcium Chloride
Fill in the blank
A liquid non-metal is _______.
Indicate whether the following statement is true or false:
Metals can be polished.
Complete the statement with the correct words.
__________ are chemicals formed on reaction of a base with an _____ giving salt and water.
Who are my companions?
| Group 'A' | Group 'B' |
| 1. Stainless steel | (a) Non-metal |
| 2. Silver | (b) compound |
| 3. Bhajani mixture for milling | (c) Mixture |
| 4. Salt | (d) Element |
| 5. Coal | (e) Alloy |
| 6. Hydrogen | (f) Metal |
Write the names of elements from the following symbol:
Xe
Select the correct answer from A, B, C, D & E for the statement given below :
A diatomic molecule.
Select the correct answer from the choice given below to complete the sentence :
An example of a monoatomic molecule is ___________.
Atoms: Fundamental particle of an element::______ : Fundamental particles of a compound.
Give an example for the elements derived from their Latin names.
An element is sonorous and highly ductile. Under which category would you classify this element? What other characteristics do you expect the element to possess?
