List of top Questions asked in UPSEE- 2018

Why is the heat evolved in neutralization of HF is highest
The number of the distinct real roots of the equation $\begin{vmatrix}\sin x&\cos x&\cos x\\ \cos x&\sin x&\cos x\\ \cos x&\cos x&\sin x\end{vmatrix} = 0 $ , in the interval $ - \frac{\pi}{4} \le x \le \frac{\pi}{4}$ is
Which one of the following group is nutritionally essential amino acids?
The movement of Pollen tube is:
Consider the following statements: Hardy Weinberg equilibrium is maintained in a population where (i) random mating is there (ii) there is no natural selection (iii) a population may gain or loose alleles Which of the statements given above is/are correct?
The antibody produced in allergic reaction is:
Which of the following does not show a resonance effect
Which one is a synthetic Auxin:
An eagle flies at constant velocity horizontally across the sky, carrying a mouse and releases the mouse while in flight. From the eagle?? perspective, the mouse falls vertically with speed $v_1$ . From an observer on the ground?? perspective, the mouse falls at an angle with speed $v_2$ . What is the speed of the eagle with respect to the observer on the ground ?
The lowest water potential in the xylem will be of:
The $E _{\text {red }}^{\circ}$ of $Ag,\, Cu ,\, Co$ and $Zn$ are $0.799$ $0.337,-0.277$ and $-0.762\, V$ respectively, which of the following cells will have maximum cell emf?

Who developed DNA fingerprinting?

When was Montreal Protocol signed?
The term "gene" was introduced by:
A stationary source (see figure) emits sound waves of frequency $f$ towards a stationary wall. If an observer moving with speed u in a direction perpendicular to the wall measures a frequency $f' = \frac{11}{8} f $ at the instant shown, then $u$ is related to the speed of sound $V_S$ as
A rectangular wire loop with length a and width b lies in the xy-plane as shown. Within the loop, there is a time dependent magnetic field given by $B = c [( x \cos \omega t ) \hat{ i }+( y \sin \omega t ) \hat{ k }]$ Here, $C$ and $\omega$ are constants. The magnitude of emf induced in the loop as a function of time is
Which of the following does not depend on the attraction of the bonding pair towards the nucleus.
The infective stage of Entamoeba histolytica is:
The basic idea of MASER was first given by
Two SHM are represented by the equations $x_{1}=20 \sin \left[5 \pi t+\frac{\pi}{4}\right]$ and $x_{2}=10(\sin 5 \pi t+\sqrt{3} \cos 5 \pi t)$ The ratio of the amplitudes of the two motions is
In activation energy for a simple Chemical reaction $A \to B$ is $E_{a}$ in forward direction. The activation energy for reverse reaction
On long standing the bleaching powder undergoes auto-oxidation. The products formed are
A solid body rotates an angle $\theta$ about a stationary axis according to the law $\theta = 6t - 2t^3 $ .What is the mean value of angular velocity over the time interval between $t = 0$ and the time when the body comes to rest ?
Pteridophytes are also called as:
Which of the following oxide is of acidic nature.