Chemistry-
General
Easy
Question
Methanol and ethanol can be distinguished by the following:
- By reaction with metallic sodium
- By reaction with caustic soda
- By heating with iodine and washing soda
- By heating with zinc and inorganic mineral acid
The correct answer is: By heating with iodine and washing soda
gives iodoform test.
Related Questions to study
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An alcohol on alk. 
oxidation gives first acetone and on further oxidation acetic acid. It is:
An alcohol on alk. oxidation gives first acetone and on further oxidation acetic acid. It is:
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The alcohol that produces turbidity immediately with 
at room temperature
The alcohol that produces turbidity immediately with at room temperature
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The conversion of m-nitrophenol to resorcinol involves respectively
The conversion of m-nitrophenol to resorcinol involves respectively
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At 530 K, glycerol reacts with oxalic acid to produce
At 530 K, glycerol reacts with oxalic acid to produce
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The following reaction is known as 
The following reaction is known as
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On heating glycerol with conc.
a compound is obtained which has bad odour. The compound is:
On heating glycerol with conc. a compound is obtained which has bad odour. The compound is:
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On conversion into the Grignard reagent followed by treatment with absolute ethanol, how many isomeric alkyl chlorides would yield 2-methylbutane?
On conversion into the Grignard reagent followed by treatment with absolute ethanol, how many isomeric alkyl chlorides would yield 2-methylbutane?
chemistry-General
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What is formed when glycerol reacts with excess of HI?
What is formed when glycerol reacts with excess of HI?
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General formula for alcohols is:
General formula for alcohols is:
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Which of the following compounds is weakest acid?
Which of the following compounds is weakest acid?
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physics-
Assertion :We cannot produce a real image by plane or convex mirrors under any circumstances
Reason : The focal length of a convex mirror is always taken as positive
Assertion :We cannot produce a real image by plane or convex mirrors under any circumstances
Reason : The focal length of a convex mirror is always taken as positive
physics-General
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An organic compound reacts with 
to give. The compound with sodium metal gives 
An organic compound reacts with to give. The compound with sodium metal gives
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maths-
If f : R → R is continuous and differentiable function such that 
f(t) dt + f¢¢¢ (3) 
t3
dt – f ¢ (1) 
t2 dt + f ¢¢ (2) 
t. dt, then the value of f ¢ (4) is :
If f : R → R is continuous and differentiable function such that f(t) dt + f¢¢¢ (3) t3
dt – f ¢ (1) t2 dt + f ¢¢ (2) t. dt, then the value of f ¢ (4) is :
maths-General
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Assertion : The refractive index of diamond is 
and that of liquid is 
If the light travels from diamond to the liquid, it will totally reflected when the angle of incidence is 30o
Reason :
where 
is the refractive index of diamond with respect to liquid
Assertion : The refractive index of diamond is and that of liquid is
If the light travels from diamond to the liquid, it will totally reflected when the angle of incidence is 30o
Reason : where is the refractive index of diamond with respect to liquid
physics-General
maths-
If f : [0, p] → R is continuous and 
f(x) sin x dx = f(x) cos x dx = 0, then the number of roots of f(x) in (0, p) is
If f : [0, p] → R is continuous and f(x) sin x dx = f(x) cos x dx = 0, then the number of roots of f(x) in (0, p) is
maths-General
