List of top Questions asked in UP JEE Polytechnic

Which of the following is not a nitrogenous fertilizer?
Balance the equation
\[ {}^9_4\text{Be} + {}^4_2\text{He} \rightarrow {}^6_12\text{C} + \cdots \]
The material of permanent magnet has
Which one of the following is the standard for atomic mass?
Electrical conductivity of a semiconductor
Gobar gas contains mainly
The metal which is found in the native state is
The order of radius of the nucleus of an atom is
The number of neutrons in \(^{238}U\) is
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
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?
An aqueous solution of Ferric chloride is
Number of moles in 180 grams of water is
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
Which of the following is an insulator?
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
A man can see upto 5 metre clearly. To see clear upto 10 m, the focal length of lens will be
How many electrons an atom have in M shell whose atomic number is 19?
Soils of Western Rajasthan have a high content of
pH value of 0.0001 M HCl solution is
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
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)
The metal that cannot displace hydrogen from dilute hydrochloric acid is