Chemistry
Grade-10
Easy
Question
Choose one of the following which is not an ionic compound.
- NaCl
- KCl
- CCl4
- MgCl2
Hint:
CCl4 Is not an ionic compound.
The correct answer is: CCl4
Ionic compounds are neutral compounds made up of positivity charge ions called cations and negatively charged ions called anions. Ionic compounds are formed between metals and nonmetals.
Carbon tetrachloride is known to be a covalent compound since it features four nonpolar covalent bonds between carbon and chlorine both of which are non metals.
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Number of valence electron present in chlorine:
Number of valence electron present in chlorine:
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Non-metals react with chlorine to form
Non-metals react with chlorine to form
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Match the following with the correct uses.
| a) Oxygen | i) Rat poison |
| b) Iodine | ii) Antiseptic |
| c) Nitrogen | iii) Manufacturing ammonia |
| d) Phosphorus | iv) Respiration |
Match the following with the correct uses.
| a) Oxygen | i) Rat poison |
| b) Iodine | ii) Antiseptic |
| c) Nitrogen | iii) Manufacturing ammonia |
| d) Phosphorus | iv) Respiration |
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2NaBr+ Cl2 
_____
2NaBr+ Cl2 _____
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Assertion: Oxides of both Na and P are acidic in nature.
Reason: Metal oxides are basic in nature.
Assertion: Oxides of both Na and P are acidic in nature.
Reason: Metal oxides are basic in nature.
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Assertion: Nitrogen and Carbon both of them do not react with dil. HCl and dil. H2SO4.
Reason: Metals do not react with dil. HCl and dil. H2SO4.
Assertion: Nitrogen and Carbon both of them do not react with dil. HCl and dil. H2SO4.
Reason: Metals do not react with dil. HCl and dil. H2SO4.
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Na+ O2 _______
Na+ O2 _______
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Choose the most electronegative element from the given options.
Choose the most electronegative element from the given options.
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The outermost shell of a non-metal contains how many electrons? Choose from the following:
The outermost shell of a non-metal contains how many electrons? Choose from the following:
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Select the alloy which consists non-metal as one of its constituents.
Select the alloy which consists non-metal as one of its constituents.
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Non-metals that catch fire when come in contact with air is ___.
Non-metals that catch fire when come in contact with air is ___.
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Chemical properties include:
Chemical properties include:
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How many types of oxides form when carbon reacts with oxygen?
How many types of oxides form when carbon reacts with oxygen?
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Non-metals have a tendency to accept _____ to form negative ions.
Non-metals have a tendency to accept _____ to form negative ions.
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The only non-metal which can gain as well as loose electron is ___.
The only non-metal which can gain as well as loose electron is ___.
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