1
TS EAMCET 2023 (Online) 13th May Morning Shift
MCQ (Single Correct Answer)
+1
-0

The hybridisations of the central atom in the molecules $\mathrm{BF}_3, \mathrm{BeF}_2, \mathrm{BrF}_3$ are respectively.

A

$s p^2, s p, s p^3 d$

B

$s p, s p^2, s p^3$

C

$s p^3, s p, s p^3 d$

D

$s p^2, s p^3, d s p^2$

2
TS EAMCET 2023 (Online) 13th May Morning Shift
MCQ (Single Correct Answer)
+1
-0

The ratio of rates of diffusion of gases $X$ and $Y$ of molecular weights 36 and 64 is

A

$9: 16$

B

$3: 4$

C

$4: 3$

D

$16: 9$

3
TS EAMCET 2023 (Online) 13th May Morning Shift
MCQ (Single Correct Answer)
+1
-0

The masses of carbondioxide and water (in g) respectively formed during complete combustion of 10 g of glucose at STP are

A

$14.66,18.0$

B

$14.66,6.0$

C

$12.0,6.0$

D

$24.0,12.0$

4
TS EAMCET 2023 (Online) 13th May Morning Shift
MCQ (Single Correct Answer)
+1
-0

Enthalpy of formation of $\mathrm{CO}(g), \mathrm{CO}_2(g)$ are -110 , $-393 \mathrm{~kJ} \mathrm{~mol}^{-1}$ respectively. The enthalpy of combustion of CO (in $\mathrm{kJ} \mathrm{mol}^{-1}$ ) is

A

-283.0

B

-110.5

C

504

D

-221.2

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