Which of the following will not give a white ppt. when $AgNO_{3}$ is added to its solution?
- $CCl_{4}$
- $NaCl$
- $MgCl_{2}$
- $KCl$
The Correct Option is A
Approach Solution - 1
Approach Solution -2
Ans: CCl4, will form ppt on reaction with AgNO3. This is because CCl4 does not react with AgNO3 readily due to its non polar nature. AgNO3 is used as an indication to find the presence of Cl- ions in the solution, thus forming a white ppt of AgCl.
AgNO3 (aq) + Cl- (aq) → AgCl (s) + NO3- (aq)
But in case of CCl4, there are no Chloride ions available that will react with AgNO3 therefore no formation of ppt.
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Organic Chemistry - Some Basic Principles and Techniques
Organic Chemistry is a subset of chemistry dealing with compounds of carbon. Therefore, we can say that Organic chemistry is the chemistry of carbon compounds and is 200-225 years old. Carbon forms bond with itself to form long chains of hydrocarbons, e.g.CH4, methane and CH3-CH3 ethane. Carbon has the ability to form carbon-carbon bonds quite elaborately. Polymers like polyethylene is a linear chain where hundreds of CH2 are linked together.
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Importance of Organic Chemistry:
Organic chemistry is applicable in a variety of areas including-
- Medicines: Example- Aspirin which is a headache medicine and Ibuprofen is a painkiller, both are organic compounds. Other examples include paracetamol.
- Food: Example- Starch which is a carbohydrate is an organic compound and a constituent of rice and other grains. It is the source of energy.
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- Fuels: Examples- Gasoline, Petrol and Diesel are organic compounds used in the automobile industry at large.