1
MHT CET 2025 23rd April Morning Shift
MCQ (Single Correct Answer)
+1
-0

Which from following pair of compounds exhibits isomorphism?

A
Calcite and aragonite
B
$\alpha$-quartz and cristobalite
C
Sodium nitrate and calcium carbonate
D
Diamond and fullerene
2
MHT CET 2025 23rd April Morning Shift
MCQ (Single Correct Answer)
+1
-0

What are the monomers used in preparation of PHBV?

A

$\mathrm{HOOC}-\left(\mathrm{CH}_2\right)_4-\mathrm{COOH}$ and $$ \mathrm{H}_2 \mathrm{~N}-\left(\mathrm{CH}_2\right)_6-\mathrm{NH}_2 $$

B
MHT CET 2025 23rd April Morning Shift Chemistry - Polymers Question 1 English Option 2
C
MHT CET 2025 23rd April Morning Shift Chemistry - Polymers Question 1 English Option 3
D

$$ \mathrm{C}_6 \mathrm{H}_5 \mathrm{OH} \text { and } \mathrm{CH}_2 \mathrm{O} $$

3
MHT CET 2025 23rd April Morning Shift
MCQ (Single Correct Answer)
+1
-0

Which from following is a correct increasing order of basic strength of compounds?

A

$\left(\mathrm{CH}_3\right)_2 \mathrm{NH}<\mathrm{CH}_3 \mathrm{NH}_2<\left(\mathrm{CH}_3\right)_3 \mathrm{~N}<\mathrm{NH}_3$

B

$\mathrm{NH}_3<\left(\mathrm{CH}_3\right)_2 \mathrm{NH}<\mathrm{CH}_3 \mathrm{NH}_2<\left(\mathrm{CH}_3\right)_3 \mathrm{~N}$

C

$\mathrm{CH}_3 \mathrm{NH}_2<\left(\mathrm{CH}_3\right)_2 \mathrm{NH}<\left(\mathrm{CH}_3\right)_3 \mathrm{~N}<\mathrm{NH}_3$

D

$\mathrm{NH}_3<\left(\mathrm{CH}_3\right)_3 \mathrm{~N}<\mathrm{CH}_3 \mathrm{NH}_2<\left(\mathrm{CH}_3\right)_2 \mathrm{NH}$

4
MHT CET 2025 23rd April Morning Shift
MCQ (Single Correct Answer)
+1
-0

Which of the following is an example of first order reaction?

A

$\mathrm{CH}_3 \mathrm{CHO}_{(\mathrm{g})} \longrightarrow \mathrm{CH}_{4(\mathrm{~g})}+\mathrm{CO}_{(\mathrm{g})}$

B

$2 \mathrm{NO}_{2(\mathrm{~g})}+\mathrm{F}_{2(\mathrm{~g})} \longrightarrow 2 \mathrm{NO}_2 \mathrm{~F}_{(\mathrm{g})}$

C

$2 \mathrm{NO}_{(\mathrm{g})}+2 \mathrm{H}_{2(\mathrm{~g})} \longrightarrow \mathrm{N}_{2(\mathrm{~g})}+2 \mathrm{H}_2 \mathrm{O}_{(\mathrm{g})}$

D

$2 \mathrm{H}_2 \mathrm{O}_{2(l)} \longrightarrow 2 \mathrm{H}_2 \mathrm{O}_{(l)}+\mathrm{O}_{2(\mathrm{~g})}$

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