Inorganic Chemistry
Periodic Table and Periodicity
MCQ (Single Correct Answer)
Chemical Bonding and Molecular Structure
MCQ (Single Correct Answer)
Hydrogen and It's Compounds
MCQ (Single Correct Answer)
d and f Block Elements
MCQ (Single Correct Answer)
Coordination Compounds
MCQ (Single Correct Answer)
Environmental Chemistry
MCQ (Single Correct Answer)
Organic Chemistry
IUPAC Nomenclatures
MCQ (Single Correct Answer)
General Organic Chemistry
MCQ (Single Correct Answer)
Haloalkanes and Haloarenes
MCQ (Single Correct Answer)
Alcohol, Phenols and Ethers
MCQ (Single Correct Answer)
Aldehyde and Ketone
MCQ (Single Correct Answer)
Carboxylic Acids and Its Derivatives
MCQ (Single Correct Answer)
Chemistry in Everyday Life
MCQ (Single Correct Answer)
Practical Organic Chemistry
MCQ (Single Correct Answer)
1
MHT CET 2021 23th September Morning Shift
MCQ (Single Correct Answer)
+1
-0

A system does 394 J of work on surrounding by absorbing 701 J heat. What is the change in internal energy of the system?

A
547 J
B
1095 J
C
307 J
D
394 J
2
MHT CET 2021 22th September Evening Shift
MCQ (Single Correct Answer)
+1
-0

Formation of $$\mathrm{NO}_{2(\mathrm{g})}$$ from $$\mathrm{N}_{2(\mathrm{g})}$$ and $$\mathrm{O}_{2(\mathrm{g})}$$ is an endothermic process. Which of the following is true for this reaction?

A
$$\Delta \mathrm{H}=0$$
B
$$\Delta \mathrm{H}<0$$
C
$$\Delta \mathrm{H}=\Delta \mathrm{U}$$
D
$$\Delta \mathrm{H}>0$$
3
MHT CET 2021 22th September Evening Shift
MCQ (Single Correct Answer)
+1
-0

What is enthalpy of formation of $$\mathrm{NH}_3$$ if bond enthalpies are as $$(\mathrm{N} \equiv \mathrm{N})=941 \mathrm{~kJ},(\mathrm{H}-\mathrm{H})=436 \mathrm{~kJ},(\mathrm{N}-\mathrm{H})=389 \mathrm{~kJ}$$ ?

A
$$-84.5 \mathrm{~kJ}$$
B
$$-21.25 \mathrm{~kJ}$$
C
$$-42.5 \mathrm{~kJ}$$
D
$$-63.45 \mathrm{~kJ}$$
4
MHT CET 2021 22th September Evening Shift
MCQ (Single Correct Answer)
+1
-0

What is the difference between $$\Delta H$$ and $$\Delta \mathrm{U}$$ for reaction given below at $$298 \mathrm{~K}$$ ?

($$\mathrm{R}=8.314 \mathrm{JK}^{-1} \mathrm{~mol}^{-1}$$

$$2 \mathrm{C}_6 \mathrm{H}_{6(\ell)}+15 \mathrm{O}_{2(\mathrm{~g})} \rightarrow 12 \mathrm{CO}_{2(\mathrm{~g})}+6 \mathrm{H}_2 \mathrm{O}_{(\ell)}$$

A
$$-2.72 \mathrm{~kJ}$$
B
$$-7.43 \mathrm{~kJ}$$
C
$$-7.8 \mathrm{~kJ}$$
D
$$-3.72 \mathrm{~kJ}$$
Questions Asked from MCQ (Single Correct Answer)
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