Chemistry-
General
Easy

Question

On heating glycerol with conc.H subscript 2 S O subscript 4 comma a compound is obtained which has bad odour. The compound is:

  1. Acrolein
  2. Formic acid
  3. Allyl alcohol
  4. Methyl isocyanide

The correct answer is: Acrolein

Related Questions to study

General
chemistry-

On conversion into the Grignard reagent followed by treatment with absolute ethanol, how many isomeric alkyl chlorides would yield 2-methylbutane?

R H space i s space left parenthesis C H subscript 3 right parenthesis subscript 2 space C H bullet C H subscript 2 space C H subscript 3
Thus, 

On conversion into the Grignard reagent followed by treatment with absolute ethanol, how many isomeric alkyl chlorides would yield 2-methylbutane?

chemistry-General
R H space i s space left parenthesis C H subscript 3 right parenthesis subscript 2 space C H bullet C H subscript 2 space C H subscript 3
Thus, 
General
chemistry-

What is formed when glycerol reacts with excess of HI?

When glycerol reacts with HIcomma space i s o minus p r o p y l space iodide is obtained

What is formed when glycerol reacts with excess of HI?

chemistry-General
When glycerol reacts with HIcomma space i s o minus p r o p y l space iodide is obtained
General
chemistry-

General formula for alcohols is:

General formula for alcohols is C subscript n H subscript left parenthesis 2 n plus 1 right parenthesis O H. Primary alcohols have negative C H subscript 2 space O H space g p. Secondary Alcohols have  and tertiary alcohols have 

General formula for alcohols is:

chemistry-General
General formula for alcohols is C subscript n H subscript left parenthesis 2 n plus 1 right parenthesis O H. Primary alcohols have negative C H subscript 2 space O H space g p. Secondary Alcohols have  and tertiary alcohols have 
parallel
General
chemistry-

Which of the following compounds is weakest acid?

Electron withdrawing groups (like – N O subscript 2 right parenthesis increase the acidity of phenols by stabilising corresponding phenoxide ion. The effect of – N O subscript 2 group will beminimum at m-position due to lack of increased delocalisation of electrons in it. Hence, m-nitrophenol is the weakest acid among these.

Which of the following compounds is weakest acid?

chemistry-General
Electron withdrawing groups (like – N O subscript 2 right parenthesis increase the acidity of phenols by stabilising corresponding phenoxide ion. The effect of – N O subscript 2 group will beminimum at m-position due to lack of increased delocalisation of electrons in it. Hence, m-nitrophenol is the weakest acid among these.
General
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
General
chemistry-

An organic compound  reacts with P C l subscript 5 to give. The compound  with sodium metal gives n minus b u tan e. space T h u s comma space A space a n d space B space a r e colon

An organic compound  reacts with P C l subscript 5 to give. The compound  with sodium metal gives n minus b u tan e. space T h u s comma space A space a n d space B space a r e colon

chemistry-General
parallel
General
maths-

If f : R → R is continuous and differentiable function such that not stretchy integral subscript negative 1 end subscript superscript x end superscript blankf(t) dt + f¢¢¢ (3) not stretchy integral subscript x end subscript superscript 0 end superscript d t equals not stretchy integral subscript 1 end subscript superscript x end superscript blankt3
dt – f ¢ (1) not stretchy integral subscript 0 end subscript superscript x end superscript blankt2 dt + f ¢¢ (2) not stretchy integral subscript x end subscript superscript 3 end superscript blankt. dt, then the value of f ¢ (4) is :

If f : R → R is continuous and differentiable function such that not stretchy integral subscript negative 1 end subscript superscript x end superscript blankf(t) dt + f¢¢¢ (3) not stretchy integral subscript x end subscript superscript 0 end superscript d t equals not stretchy integral subscript 1 end subscript superscript x end superscript blankt3
dt – f ¢ (1) not stretchy integral subscript 0 end subscript superscript x end superscript blankt2 dt + f ¢¢ (2) not stretchy integral subscript x end subscript superscript 3 end superscript blankt. dt, then the value of f ¢ (4) is :

maths-General
General
physics-

Assertion : The refractive index of diamond is square root of 6 and that of liquid is square root of 3
If the light travels from diamond to the liquid, it will totally reflected when the angle of incidence is 30o
Reason :mu equals fraction numerator 1 over denominator sin invisible function application C end fraction where mu is the refractive index of diamond with respect to liquid

Assertion : The refractive index of diamond is square root of 6 and that of liquid is square root of 3
If the light travels from diamond to the liquid, it will totally reflected when the angle of incidence is 30o
Reason :mu equals fraction numerator 1 over denominator sin invisible function application C end fraction where mu is the refractive index of diamond with respect to liquid

physics-General
General
maths-

If f : [0, p] → R is continuous and not stretchy integral subscript 0 end subscript superscript pi end superscript blankf(x) sin x dx = not stretchy integral subscript 0 end subscript superscript pi end superscript blankf(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 not stretchy integral subscript 0 end subscript superscript pi end superscript blankf(x) sin x dx = not stretchy integral subscript 0 end subscript superscript pi end superscript blankf(x) cos x dx = 0, then the number of roots of f(x) in (0, p) is

maths-General
parallel
General
physics-

Assertion : Different colours travel with different speed in vacuum
Reason : Wavelength of light depends on refractive index of medium

Assertion : Different colours travel with different speed in vacuum
Reason : Wavelength of light depends on refractive index of medium

physics-General
General
chemistry-

The following substance can be used as a raw material for obtaining alcohol:

The following substance can be used as a raw material for obtaining alcohol:

chemistry-General
General
chemistry-

Etherates are

Etherates are complexes of ethers with Lewis acid 

Etherates are

chemistry-General
Etherates are complexes of ethers with Lewis acid 
parallel
General
chemistry-

E t h y l space a l c o h o l space r e a c t s space w i t h space H C l space b u t space n o t space w i t h space H C N space b e c a u s e colon

Weak base reacts with strong acid.

E t h y l space a l c o h o l space r e a c t s space w i t h space H C l space b u t space n o t space w i t h space H C N space b e c a u s e colon

chemistry-General
Weak base reacts with strong acid.
General
chemistry-

Lucas reagent produces cloudiness immediately with:

Reactivity order of  towards Lucas reagent is, Tertiary>Secondary>Primary alcohol.

Lucas reagent produces cloudiness immediately with:

chemistry-General
Reactivity order of  towards Lucas reagent is, Tertiary>Secondary>Primary alcohol.
General
chemistry-

 The product  is

The pinacol-pinacolone rearrangement involves dehydration of diols through the formation of carbocation intermediate which rearranges to more stable compound. 

 The product  is

chemistry-General
The pinacol-pinacolone rearrangement involves dehydration of diols through the formation of carbocation intermediate which rearranges to more stable compound. 
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