List of top Questions asked in UP JEE Polytechnic

The metal which is found in the native state is
The number of neutrons in \(^{238}U\) is
The order of radius of the nucleus of an atom is
If velocity of light in air is \(3 \times 10^8\) m/s and that in water is \(2 \times 10^8\) m/s, then what would be the critical angle?
Accepting the definition that an acid is a proton donor, the acid in the following reaction
\[ NH_3 + H_2O \rightleftharpoons NH_4^+ + OH^- \] is
Number of moles in 180 grams of water is
An aqueous solution of Ferric chloride is
Two springs with spring constants \(K_1 = 1500 \, \text{N/m}\) and \(K_2 = 3000 \, \text{N/m}\) are stretched by the same force. The ratio of potential energy stored in spring will be
A cycle tyre bursts suddenly. This represents an
How many electrons an atom have in M shell whose atomic number is 19?
Soils of Western Rajasthan have a high content of
A man can see upto 5 metre clearly. To see clear upto 10 m, the focal length of lens will be
The volume of a gas at 1140 mm of Hg pressure and 546°C temperature is 150 litre. The volume of gas at S.T.P. will be
The metal that cannot displace hydrogen from dilute hydrochloric acid is
Work done during the expansion of a gas from a volume of \(4 \, \text{dm}^3\) to \(6 \, \text{dm}^3\) against a constant external pressure of 3 atm is (1 L atm = 101.32 J)
Length of a rod increases 0.2% on increasing the temperature by 100°C. The value of coefficient of linear expansion of material of rod is
Little leaf disease of mango and brinjal is caused due to the deficiency of
pH value of 0.0001 M HCl solution is
A force is applied on a 6 gm mass (at rest) for 20 seconds. After no force is exerted on it and after travelling distance of 50 cm in 5 seconds, mass stops. The amount of force in Newton will be
A particle of charge ‘q’, mass ‘m’ and velocity ‘v’, enters perpendicular to a magnetic field ‘B’, force on particle will be
The value of one Faraday charge is
When \(10^{14}\) electrons are removed from a neutral metal sphere, the charge on the sphere becomes
In a 10 cm long horizontal wire, 5 Amp current is flowing. The mass of the wire is \(3 \times 10^{-3}\) kg/m. What will be the field to keep wire stable?
IUPAC name of
H\(_3\)C - C = CH - CH\(_2\) - CH\(_3\) Cl
Phenol with dilute HNO\(_3\) gives