List of top Questions asked in UP JEE Polytechnic

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\( F_2C = CF_2 \) is a monomer of:
In which of the following compounds does the oxidation number of oxygen equal +2?
10.0 gm \( \text{CaCO}_3 \) on heating gave 5.6 gm of \( \text{CaO} \) and 4.4 gm of \( \text{CO}_2 \), given data support the law of:
Hardness of water is due to the presence of:
Detergents are the salt of:
The rate of diffusion of a gas is \( r \) and its density is \( d \), then under similar conditions of pressure and temperature:
Among the following, which is an ionic hydride?
Real gas behaves like an ideal gas at:
Which of the following order of ionic radii is correctly represented?
Which catalyst is used in oxidizing \( NH_3 \) in Ostwald's process?
In the following reaction: \[ SO_2 + 2H_2S \rightarrow 3S + 2H_2O \] Which of the following statements is correct?
Equivalent weight of a dibasic acid is 12. Its molecular weight is:
Essential constituent of an amalgam is:
An example of thermosetting plastic is:
Hydrocarbon used for welding purposes is:
Which of the following types of drugs reduces fever?

The IUPAC name of
The IUPAC name of

The number of molecules present in 2.8 g of nitrogen is:
Electronic configuration of copper can be represented as:
A wooden block of mass 6 kg is pulled across a rough surface by a 54 N force against a friction force \( F \). The acceleration of the block is \( 6 \, \text{m/s}^2 \). Then the value of friction force \( F \) is:
The half-life period of a radioactive element is 150 days. After 600 days, 1 gm of the element will be reduced to:
The common name of 2-Butanone is:
100 joules of heat is produced each second in a 4 ohm resistance. Potential difference across the resistor is:
The gravitational force between two masses kept at a certain distance is \( P \) Newton. The same two masses are now kept in water and the distance between them is the same. The gravitational force between these two masses in water is \( Q \) Newton. Then: