Chemistry-
General
Easy
Question
The product obtained on heating n-heptane with Cr2O3– Al2O3 at 600°C is
- Cyalohexane
- Cyclohexane
- Benzene
- Toluene
The correct answer is: Toluene
Related Questions to study
Chemistry-
Ammonical AgNO3 reacts with acetylene to form:
Ammonical AgNO3 reacts with acetylene to form:
Chemistry-General
Chemistry-
Anti-Markownikoff addition of HBr is not observed is
Anti-Markownikoff addition of HBr is not observed is
Chemistry-General
Physics-
The potential difference between points 
and 
of adjoining figure is
The potential difference between points and of adjoining figure is
Physics-General
Physics-
In a hydrogen discharge tube it is observed that through a given cross-section 
electrons are moving from right to left and 
protons are moving from left to right. What is the electric current in the discharge tube and what is its direction
In a hydrogen discharge tube it is observed that through a given cross-section electrons are moving from right to left and protons are moving from left to right. What is the electric current in the discharge tube and what is its direction
Physics-General
Physics-
We have two wires A and B of same mass and same material. The diameter of the wire A is half of that B. If the resistance of wire A is 24 ohm then the resistance of wire B will be
We have two wires A and B of same mass and same material. The diameter of the wire A is half of that B. If the resistance of wire A is 24 ohm then the resistance of wire B will be
Physics-General
Physics-
In the figure a carbon resistor has bands of different colours on its body as mentioned in the figure. The value of the resistance is
In the figure a carbon resistor has bands of different colours on its body as mentioned in the figure. The value of the resistance is
Physics-General
Physics-
If a wire of resistance R is melted and recasted to half of its length, then the new resistance of the wire will be
If a wire of resistance R is melted and recasted to half of its length, then the new resistance of the wire will be
Physics-General
Physics-
If potential 
and current 
amp are given to us. Then what will be the value of resistance
If potential and current amp are given to us. Then what will be the value of resistance
Physics-General
Maths-
The area of the quadrilateral formed by (2, -1) (4, 3), (-1, 2) and (-3, -2) is
The area of the quadrilateral formed by (2, -1) (4, 3), (-1, 2) and (-3, -2) is
Maths-General
Physics-
An electron (charge = 1.6 
10–19 coulomb) is moving in a circle of radius 5.1 10–11m at a frequency of 6.8 × 1015 revolutions/sec. The equivalent current is approximately
An electron (charge = 1.6 10–19 coulomb) is moving in a circle of radius 5.1 10–11m at a frequency of 6.8 × 1015 revolutions/sec. The equivalent current is approximately
Physics-General
Physics-
Two wires A and B of same material and same mass have radius 2rand r. If resistance of wire A is 
, then resistance of B will be
Two wires A and B of same material and same mass have radius 2rand r. If resistance of wire A is , then resistance of B will be
Physics-General
Physics-
In a neon discharge tube 
ions move to the right each second while 
electrons move to the left per second. Electron charge is 
. The current in the discharge tube
In a neon discharge tube ions move to the right each second while electrons move to the left per second. Electron charge is . The current in the discharge tube
Physics-General
Physics-
A platinum resistance thermometer has a resistance of 
at 
. When dipped in a liquid the resistance becomes 
. The temperature coefficient of resistance for platinum is 
. The temperature of the liquid is
A platinum resistance thermometer has a resistance of at . When dipped in a liquid the resistance becomes . The temperature coefficient of resistance for platinum is . The temperature of the liquid is
Physics-General
Physics-
For a metallic wire, the ratio V/i (V= the applied potential difference, i = current flowing) is
For a metallic wire, the ratio V/i (V= the applied potential difference, i = current flowing) is
Physics-General
Maths-
The centroid of the triangle ABC is (2, 3) and A = (4, 2), B = (4, 5) then the area of the
triangle ABC
For such questions, we should know the relation between centroid and vertices of a triangle. We should also know the formula of area using vertices of at triangle.
The centroid of the triangle ABC is (2, 3) and A = (4, 2), B = (4, 5) then the area of the
triangle ABC
Maths-General
For such questions, we should know the relation between centroid and vertices of a triangle. We should also know the formula of area using vertices of at triangle.
