List of top Questions asked in TS EAMCET

If $a$ is a unit vector, then $| a \times \hat{ i }|^{2}+| a \times \hat{ j }|^{2}+| a \times \hat{ k }|^{2}=$

If $\frac{x^{2} + 5}{\left(x^{2} + 1 \right)\left(x-2\right)} = \frac{A}{x-2} + \frac{Bx+C}{x^{2} + 1 } , $ then $A + B + C = $

Cylohexylamine and aniline can be distinguished by

A thermocol box has a total wall area (including the lid) of $1.0 m ^{2}$ and wall thickness of $3 cm$. It is filled with ice at $0^{\circ} C$. If the average temperature outside the box is $30^{\circ} C$ throughout the day, the amount of ice that melts in one day is [Use $K_{\text {thermocol }}=0.03 W / mK$ $.L_{\text {fusion (ice) }}=3.00 \times 10^{5} J / kg ]$

Given $\Delta H_{f}{ }^{\circ}$ for $CO _{2}(g), CO (g)$ and $H _{2} O (g)$ are $ -393.5, -110.5 \text { and } -241.8 kJ mol ^{-1}$, respectively. The $\Delta H_{f}^{\circ}$ [in $kJ mol ^{-1}$ ] for the reaction $CO _{2}(g)+ H _{2}(g) \longrightarrow CO (g)+ H _{2} O (g)$ is

Heating a mixture of $ {Cu_2O}$ and $ {Cu_2S}$ will give

The bond length (pm) of $ {F_2, H_2, Cl_2}$ and $ {I_2}$, respectively is

An AC generator producing 10V(rms) at 200 rad/s is connected in series with a $50 \Omega$ resistor, a 400 mH inductor and a $200 \mu F$ capacitor. The rms voltage across the inductor is

The number of complementary Hydrogen bond(s) between a guanine and cytosine pair is

An electron collides with a Hydrogen atom in its ground state and excites it to $n = 3$ state. The energy given to the Hydrogen atom in this inelastic collision (neglecting the recoil of Hydrogen atom) is

Which of the following statement (S) is true

Which of the following principles is being used in Sonar Technology ?

Consider a solenoid carrying current supplied by a DC source with a constant emf containing iron core inside it. When the core is pulled out of the solenoid, the change in current will

Consider the single electrode process $4H^{+} + 4^{-} e 2H _2$ catalyzed by platinum black electrode in $HCl$ electrolyte. The potential of the electrode is $-0.059\,V$ $V. SHE$. What is the concentration of the acid in the hydrogen half cell if the $H_2$ pressure is $1$ bar ?

Which of the following elements has the lowest melting point ?

Atomic radius (pm) of Al, Si, N and F respectively is

Let $S$ and $S'$ be the foci of an ellipse and B be one end of its minor axis. If $SBS'$ is an isosceles right angled triangle then the eccentricity of the ellipse is

For the parabola $y^2 + 6\,y - 2x = - 5$ I. the vertex is $( - 2,-3)$ II. the directrix is $y + 3 = 0$ Which of the following is correct?

The radical centre of the circles $x^{2}+y^{2}-4\,x-6 \,y+5=0$ $x^{2}+y^{2}-2\,x-4 \,y-1=0$ and $x^{2}+y^{2}-6 \,x-2 \,y=0=0$ lies on the line

If $\frac{x^2}{a^2} + \frac{y^2}{b^2} = 1 ,$ then $\frac{d^2 y}{dx^2} = $

If $cosec\, \theta - \cot \theta = 2017$, then quadrant in which $\theta $ lies is

A bag contains $5$ red balls, $3$ black balls and $4$ white balls are drawn at random. The probability that they are not of same colour is

$A$ straight line makes an intercept on the $Y$-axis twice as long as that on $X$-axis and is at a unit distance from the origin. Then the line is represented by the equations

A wire has resistance of $3.1 \,\Omega $ at $30^{\circ} \, C$ and $4.5\, \Omega $ at $100^{\circ} C$ . The temperature coefficient of resistance of the wire is

Nitration of phenyl benzoate yields the product