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

In long form of periodic table an element ' $E$ ' has atomic number 78 . The period and group number of the element are $x$ and $y$ respectively. $(x+y)$ is equal to

A

18

B

15

C

17

D

16

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

In which of the following options, the molecules are correctly arranged in the increasing order of their bond angles?

A

$\mathrm{NH}_3<\mathrm{O}_3<\mathrm{H}_2 \mathrm{O}<\mathrm{SO}_2$

B

$\mathrm{H}_2 \mathrm{O}<\mathrm{O}_3<\mathrm{NH}_3<\mathrm{SO}_2$

C

$\mathrm{H}_2 \mathrm{O}<\mathrm{NH}_3<\mathrm{SO}_2<\mathrm{O}_3$

D

$\mathrm{H}_2 \mathrm{O}<\mathrm{NH}_3<\mathrm{O}_3<\mathrm{SO}_2$

3
TG EAPCET 2025 (Online) 4th May Morning Shift
MCQ (Single Correct Answer)
+1
-0

In which of the following the compounds are correctly arranged in the decreasing order of boiling points?

A

$\mathrm{HF}>\mathrm{H}_2 \mathrm{O}>\mathrm{NH}_3>\mathrm{PH}_3$

B

$\mathrm{H}_2 \mathrm{O}>\mathrm{HF}>\mathrm{NH}_3>\mathrm{PH}_3$

C

$\mathrm{H}_2 \mathrm{O}>\mathrm{HF}>\mathrm{PH}_3>\mathrm{NH}_3$

D

$\mathrm{HF}>\mathrm{NH}_3>\mathrm{H}_2 \mathrm{O}>\mathrm{PH}_3$

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

The force $(F)$ required to maintain the flow of layers of a liquid is equal to

( $A=$ area of contact of layers

$d z=$ distance between the layers

$d u=$ change in velocity

$\eta=$ coefficient of viscosity)

A

$\eta \frac{d u}{d z} \cdot \frac{1}{A}$

B

$\eta \frac{d z}{d u} \cdot A$

C

$\eta \mathrm{A} \frac{d u}{d z}$

D

$\eta \frac{d z}{A} \cdot \frac{1}{d u}$

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