Chemistry-
General
Easy
Question
On heating glycerol with conc.
a compound is obtained which has bad odour. The compound is:
- Acrolein
- Formic acid
- Allyl alcohol
- Methyl isocyanide
The correct answer is: Acrolein
Related Questions to study
chemistry-
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
chemistry-
What is formed when glycerol reacts with excess of HI?
What is formed when glycerol reacts with excess of HI?
chemistry-General
chemistry-
General formula for alcohols is:
General formula for alcohols is:
chemistry-General
chemistry-
Which of the following compounds is weakest acid?
Which of the following compounds is weakest acid?
chemistry-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
chemistry-
An organic compound reacts with
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](data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAO0AAAAPCAYAAAAIwUgGAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAABGJhU0UAAAAMyZLetQAABMlJREFUeNrtWm9EnVEYf11JkphcyTUjmfRhYiaTmdiHmbmuyFyTXJfMPszMuCaZZF9mZtKXmSSZS9KHZMbkSjIxc00ylz7MZDKSTHJd7p5jv7sdr/P3/VNdex9+3Pv2nnOe8zvPc54/N8c5XTkixJz/U9i+y4SqAmWOn3rh6uEZ1MmUu2NChfCNsENYJnQ4kfyVLsKXAOfbr3M+LhKKJ8RVWHIHF01DHdpZl4D/ScJs5Kr/JEXIBzhftc75GCS8PSGuwpBzcI4P0Lfe7Cwl4F91JmdCnhIeE9pxuxwhej0Icb0xwgThB1KTgiAdYe/lJONznMPycEuSsIkoUCL0Sxx+CGkR02WNcF6iO+NoEe+xVOp6AHxMgH9Hsdc2wkvCnuRsTLiqyRh0r2D/OZ/6vyakCSOEaYsSYQL7KSPSXfBhly2EKcIBzmYRuuQM7dH93hzhZgD6s3nvET5Br5ylLUkD0gKImMVAplACkzWH4LQLcJAcbukYDDIveC8lGZ8yjLTstuzB5wxhS0AKc9jnHOkZOK5bWhFRkvjeI5jPiyxyc4r2yg5/He/IzsaUK+awbwiNAZ3lVcIKZ4Q7huNW4GS18xfpb2qXMVz6GXxuBWdVw8hfW5uN7SXMGNTnpvrvEl4QOj3aktS2WQQaldSKbSE4bYlzJH4Th4L3EpLxCQ/pca0B5CZlwOA9B479RHB4fh1gR9H0KGGNFs3ZmHK1QbgR0Dk2IILwWclnQrdmXBoG7Y5stzza5bgkoso4Eb1Xy9R+aSKsrf6Dkjl82VIMiooO5EhTR+ogW080b5PLaWXviZ7b1LRVw7FVwbos9Yq7nh06/jq7DRL++bNp1pyNDVdDcKxkgGUVL88I9zXjCojQvKy50ksbu/wuuNRiGvsVrdOIC+0jmoN+9T9SrOnLlvqghCjtKYQQZVXrrRq8J3quctpx3HgVyWVi6rR9kotpI4D0sqDgatVgjA1XDqL6Ov7W4lHvbji/W1gau6wZ6/4ZRuSgpnbZKyll+gztV8TxXUTCMPQPxJbSjri1LXvuV2TzPoKD6d4bETyvKhokQ4jifiNtUpAShcmHzdnYcMVnNqymGvao97qj/o1Z9dPPT9f3fsEFYLp3ln7O+7DfNGpYXoZR94ehfyC2xIrprMVzvzKFhgEvjTAgvq57JegSXnH+dJvdepUlacVhgOkxu+E3Q+Ija8GVaIwNV7zMIKrYyijWlEleUN/xsuu6SMfRjPNilymJA8xL6mETjmfgdGHoH4gtLUkIXtIQ72e9EtcMSeBZRlAvzcEZ4/g+LdGrKCH5K0ccW2cShpzw4LRMttFVjKFryBoJ1xT1vh/+bc7GhiveqbcFjca8o+66duCCVaXVWY1TTyILiqEOZB3+dx733ox99OL7ZTR0dg3td4lrPMWRmRU1DSE/+nuxJWEnrsniuV/ZQ3pQqzOLEgNhG3mPKMpqltsKvQYwr3uDl5C2lHGzsVqi9tuaF6ftRFpYAelZTZPORFQ8m56NKVcH0KuCeqtbEiVVTrvAzS+TBM5XJWOYaxw67rnWtLHLdjjJMZpIAxb2u8+d1zH2b9Jx9qq/F1uKJBKt6NLbMCRe55zFI7OJ5LSEpZlbztn6H+JIIolEk9q2RzScTfkNK7+0jA+vd+kAAAFedEVYdE1hdGhNTAA8bWF0aCB4bWxucz0iaHR0cDovL3d3dy53My5vcmcvMTk5OC9NYXRoL01hdGhNTCI+PG1pPm48L21pPjxtbz4tPC9tbz48bWk+YjwvbWk+PG1pPnU8L21pPjxtaT50YW48L21pPjxtaT5lPC9taT48bW8+LjwvbW8+PG1vPiYjeEEwOzwvbW8+PG1pPlQ8L21pPjxtaT5oPC9taT48bWk+dTwvbWk+PG1pPnM8L21pPjxtbz4sPC9tbz48bW8+JiN4QTA7PC9tbz48bWk+QTwvbWk+PG1vPiYjeEEwOzwvbW8+PG1pPmE8L21pPjxtaT5uPC9taT48bWk+ZDwvbWk+PG1vPiYjeEEwOzwvbW8+PG1pPkI8L21pPjxtbz4mI3hBMDs8L21vPjxtaT5hPC9taT48bWk+cjwvbWk+PG1pPmU8L21pPjxtbz46PC9tbz48L21hdGg+VJMDEgAAAABJRU5ErkJggg==)
An organic compound reacts with
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](data:image/png;base64,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)
chemistry-General
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
physics-
Assertion : The refractive index of diamond is
and that of liquid is ![square root of 3](data:image/png;base64,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)
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 ![square root of 3](data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAABoAAAATCAYAAACORR0GAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAABGJhU0UAAAAQ3ZOC+gAAAR5JREFUeNpjYCAe8ADxfwow0SACiPcz0AFsB+IUWlsiAsTvoTRNQQYQr8ci7gjE24D4GxD/AOJbQDwBiIXJtQgUNyE4xIOAmA1JzACId5BjiQIQvwZiDhL0fCLHogognk2CeiUgvkGOReeB2IMIdeJAnAiNJy9CGRId6ADxcyBmwaMPPWMW4FKoAsTzoYps0OTagbifSJ8LAnEAEJ8EYntsCmqgFoHyySk0uftAbEJiUPNALcMJsoD4HzSsQcACiG8TCDZc4AchBaCMtwzKngzEDWRYogdNEHjBHCD+DvUFKO9oEFB/EIhDoeqZoCUFKLjjCVkkAMR/gXgtEB8nwvW2QLwFGlQ/oCWFD7FeP0womVILmEItkqFH3RNCbQMBMLZHLDCj6IAAAABYdEVYdE1hdGhNTAA8bWF0aCB4bWxucz0iaHR0cDovL3d3dy53My5vcmcvMTk5OC9NYXRoL01hdGhNTCI+PG1zcXJ0Pjxtbj4zPC9tbj48L21zcXJ0PjwvbWF0aD6vi/NRAAAAAElFTkSuQmCC)
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
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
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
chemistry-
Etherates are
Etherates are
chemistry-General
chemistry-
chemistry-General
chemistry-
Lucas reagent produces cloudiness immediately with:
Lucas reagent produces cloudiness immediately with:
chemistry-General
chemistry-
The product is
The product is
chemistry-General