1
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

$24.0,12.0$

2
TS EAMCET 2022 (Online) 20th July Evening Shift
MCQ (Single Correct Answer)
+1
-0

Round the number 234555359 to 3 significant figure.

A

234000000

B

234000

C

235000000

D

234500000

3
TS EAMCET 2022 (Online) 20th July Morning Shift
MCQ (Single Correct Answer)
+1
-0

Magnetite can be reduced with CO to yield iron metal and carbon dioxide. Calculate the mass of magnetite (in kg ) needed to obtain 4 kg of iron if the process is $80 \%$ efficient. [Atomic weight of Fe and O are 56 g and 16 g , respectively]

A

15.5

B

5.5

C

17.0

D

6.9

4
TS EAMCET 2022 (Online) 19th July Evening Shift
MCQ (Single Correct Answer)
+1
-0

Combustion of 10 mL of a gaseous hydrocarbon gives 40 mL of $\mathrm{CO}_2$ and 50 mL of water vapour under the same conditions. The molecular formula of the hydrocarbon is

A

$\mathrm{C}_4 \mathrm{H}_6$

B

$\mathrm{C}_4 \mathrm{H}_8$

C

$\mathrm{C}_3 \mathrm{H}_4$

D

$\mathrm{C}_4 \mathrm{H}_{10}$

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