Chemistry-
General
Easy
Question
Propan-2-ol on reacting with 
produces:
- Trichloroethanal
- Trichloroacetone
- Acetone
- None of these
The correct answer is: Trichloroacetone
Related Questions to study
chemistry-
Proof spirit contains about:
The percentage of alcohol is expressed as proof spirit for tax lavy. It contains 57.1 % (by vol.) or 48% (by wt.) of alcohol.
Proof spirit contains about:
chemistry-General
The percentage of alcohol is expressed as proof spirit for tax lavy. It contains 57.1 % (by vol.) or 48% (by wt.) of alcohol.
physics-
A convex lens makes a real image 4 cm long on a screen. When the lens is shifted to a new position without disturbing the object, we again get a real image on the screen which is 16 cm tall. The length of the object must be
A convex lens makes a real image 4 cm long on a screen. When the lens is shifted to a new position without disturbing the object, we again get a real image on the screen which is 16 cm tall. The length of the object must be
physics-General
physics-
The slit of a collimator is illuminated by a source as shown in the adjoining figures. The distance between the slit S and the collimating lens L is equal to the focal length of the lens. The correct direction of the emergent beam will be as shown in figure
In case of convex lens if rays are coming from the focus, then the emergent rays after refraction are parallel to principal axis.
The slit of a collimator is illuminated by a source as shown in the adjoining figures. The distance between the slit S and the collimating lens L is equal to the focal length of the lens. The correct direction of the emergent beam will be as shown in figure
physics-General
In case of convex lens if rays are coming from the focus, then the emergent rays after refraction are parallel to principal axis.
physics-
Two similar plano-convex lenses are combined together in three different ways as shown in the adjoining figure. The ratio of the focal lengths in three cases will be
In each case two plane-convex lens are placed close to each other, and 
.
.Two similar plano-convex lenses are combined together in three different ways as shown in the adjoining figure. The ratio of the focal lengths in three cases will be
physics-General
In each case two plane-convex lens are placed close to each other, and .
.physics-
White light is incident on the interface of glass and air as shown in the figure. If green light is just totally internally reflected then the emerging ray in air contains
and 
Yellow, orange and red have higher wavelength than green, so m will be less for these rays, consequently critical angle for these rays will be high, hence if green is just totally internally reflected then yellow, orange and red rays will emerge out.
White light is incident on the interface of glass and air as shown in the figure. If green light is just totally internally reflected then the emerging ray in air contains
physics-General
and Yellow, orange and red have higher wavelength than green, so m will be less for these rays, consequently critical angle for these rays will be high, hence if green is just totally internally reflected then yellow, orange and red rays will emerge out.
physics-
A ray of light is incident at an angle i from denser to rare medium. The reflected and the refracted rays are mutually perpendicular. The angle of reflection and the angle of refraction are respectively r and r’, then the critical angle will be
(as Ði = Ðr)
A ray of light is incident at an angle i from denser to rare medium. The reflected and the refracted rays are mutually perpendicular. The angle of reflection and the angle of refraction are respectively r and r’, then the critical angle will be
physics-General
(as Ði = Ðr)
physics-
A fish is a little away below the surface of a lake. If the critical angle is 
, then the fish could see things above the water surface within an angular range of 
where
From figure given in question 
A fish is a little away below the surface of a lake. If the critical angle is , then the fish could see things above the water surface within an angular range of where
physics-General
From figure given in question
physics-
A ray of light passes through four transparent media with refractive indices 
as shown in the figure. The surfaces of all media are parallel. If the emergent ray CD is parallel to the incident ray AB, we must have
For successive refraction through different media 
constant. Here as 
is same in the two extreme media, 
.
constant. Here as is same in the two extreme media, .A ray of light passes through four transparent media with refractive indices as shown in the figure. The surfaces of all media are parallel. If the emergent ray CD is parallel to the incident ray AB, we must have
physics-General
For successive refraction through different media constant. Here as is same in the two extreme media, .
constant. Here as is same in the two extreme media, .chemistry-
The acidic character of 
alcohols, 
and 
is of the order
Alcohols are more acidic than alkynes but less acidic than water thus, the correct order of acidity is 
The acidic character of alcohols, and is of the order
chemistry-General
Alcohols are more acidic than alkynes but less acidic than water thus, the correct order of acidity is
chemistry-
Ethanol is more soluble in water but ether is less soluble because:
Both shows H-bonding, however the increase in hydrophobic character (due to two alkyl groups in ether), the H-bonding weakens.
Ethanol is more soluble in water but ether is less soluble because:
chemistry-General
Both shows H-bonding, however the increase in hydrophobic character (due to two alkyl groups in ether), the H-bonding weakens.
chemistry-
How many structural isomers are known for 
4 alcohols (butan-1-ol; butan-2-ol; 2-methyl butan-1-ol; 2-methyl butan-2-ol) and 3 ethers (diethyl ether, methyl-propyl ether and methyl isopropyl ether).
How many structural isomers are known for
chemistry-General
4 alcohols (butan-1-ol; butan-2-ol; 2-methyl butan-1-ol; 2-methyl butan-2-ol) and 3 ethers (diethyl ether, methyl-propyl ether and methyl isopropyl ether).
chemistry-
Methanol and ethanol can be distinguished by the following:
gives iodoform test.Methanol and ethanol can be distinguished by the following:
chemistry-General
gives iodoform test.chemistry-
An alcohol on alk. 
oxidation gives first acetone and on further oxidation acetic acid. It is:
(Aldehyde and acid of same carbon atoms)
(Acid of less carbon atom)
An alcohol on alk. oxidation gives first acetone and on further oxidation acetic acid. It is:
chemistry-General
(Aldehyde and acid of same carbon atoms) (Acid of less carbon atom)chemistry-
The alcohol that produces turbidity immediately with 
at room temperature
is known as Lucas reagent. Lucas test is used for the distinction between primary, secondary and tertiary alcohols.The tertiary alcohol reacts immediately with Lucas reagent producing turbidity. The secondary alcohol gives turbidity within 5-10 min and primary alcohol doesn’t give turbidity at all at room temperature. In the given alternates, 2-hydroxy-2-methyl propane is
alcohol, so it is more reactive.The alcohol that produces turbidity immediately with at room temperature
chemistry-General
is known as Lucas reagent. Lucas test is used for the distinction between primary, secondary and tertiary alcohols.The tertiary alcohol reacts immediately with Lucas reagent producing turbidity. The secondary alcohol gives turbidity within 5-10 min and primary alcohol doesn’t give turbidity at all at room temperature. In the given alternates, 2-hydroxy-2-methyl propane is
alcohol, so it is more reactive.chemistry-
The conversion of m-nitrophenol to resorcinol involves respectively
The conversion of m-nitrophenol to resorcinol involves respectively
chemistry-General
