1
TG EAPCET 2025 (Online) 2nd May Morning Shift
MCQ (Single Correct Answer)
+1
-0

When electromagnetic radiation of wavelength 310 nm falls on the surface of a metal having work function 3.55 eV , the velocity of photoelectrons emitted is $x \times 10^5 \mathrm{~ms}^{-1}$. The value of $x$ is (Nearest integer) $\left(m_e=9 \times 10^{-31} \mathrm{~kg}\right)$

A

2

B

4

C

5

D

6

2
TG EAPCET 2025 (Online) 2nd May Morning Shift
MCQ (Single Correct Answer)
+1
-0

In which of the following options, elements are correctly arranged in the increasing order of their atomic radius?

A

$\mathrm{Si}<\mathrm{P}<\mathrm{Na}<\mathrm{N}<\mathrm{F}$

B

$\mathrm{Na}<\mathrm{Si}<\mathrm{P}<\mathrm{N}<\mathrm{F}$

C

$\mathrm{F}<\mathrm{N}<\mathrm{P}<\mathrm{Si}<\mathrm{Na}$

D

$\mathrm{N}<\mathrm{F}<\mathrm{Si}<\mathrm{P}<\mathrm{Na}$

3
TG EAPCET 2025 (Online) 2nd May Morning Shift
MCQ (Single Correct Answer)
+1
-0

$A, B C, D$ and $E$ are elements with atomic numbers 13 , $11,9,7$ and 16 respectively. Among these elements, ion of an element $X$ has largest size and ion of an element $Y$ has smallest size. $X$ and $Y$ are respectively.(Assume that all ions have nearest inert gas configuration)

A

$D, A$

B

$A, D$

C

$E, A$

D

D, A

4
TG EAPCET 2025 (Online) 2nd May Morning Shift
MCQ (Single Correct Answer)
+1
-0

Identify the pair of molecules in which the hybridisation of the central atom is $s p^2$ with bent geometry.

A

$\mathrm{H}_2 \mathrm{O}, \mathrm{SO}_2$

B

$\mathrm{SO}_2, \mathrm{O}_3$

C

$\mathrm{H}_2 \mathrm{O}, \mathrm{O}_3$

D

$\mathrm{N}_2 \mathrm{O}, \mathrm{H}_2 \mathrm{O}$

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