List of top Chemistry Questions asked in Bihar Board XII

If the rate equation for a reaction is \( \frac{dx}{dt} = k[H]^{1/2}[B]^{1/2} \), the order of the reaction is
Which of the following catalysts is used in the manufacture of ammonia by Haber’s process?
The rate of reaction of a substance depends upon
An octahedral void is surrounded by how many spheres ?

What is the carbyl amine reaction? 
 

The coordination number of Ni in \( [\text{Ni(C}_2\text{O}_4)_3]^{2-} \) is

\(CH_3\text{CH}_2\text{C} \, \text{NH}_2 \text{ is a} \)

Write IUPAC names of the following compounds:
(i) CH₃-CH₂-COOH (ii) CH₂=COOH (iii) ClCH₂-COOH (iv) CH₃-CH=CH-COOH (v) CH₃-CO-CH₂-COOH
Explain the following with examples: (i) Aldol condensation (ii) Cannizzaro's reaction
Which is Rosenmund reduction?
How would you distinguish among primary, secondary, and tertiary alcohols?
Write the IUPAC names of the following compounds:
(i) \( \text{CH}_3\text{CH}_2\text{OH} \)
(ii) \( \text{CH}_3\text{CH}_2\text{CH}_2\text{OH} \)
What do you understand by rate of a reaction? What factors affect the rate of a reaction? Discuss.
What is soap? How does it act in the cleansing of clothes?
Write the principle of manufacture of ammonia by Haber’s process. How does it react with CuSO\(_4\) solution?
How is a polypeptide bond formed?
Explain effective atomic number (EAN).
Why is cryolite ore used during the extraction of Al metal?
Write the electronic configurations of Kr (Z = 36) and Xe (Z = 54).
Give one example of each of the following:
(i) Synthetic polymer
(ii) Condensation polymer
What is Schottky defect? Explain with example.
Discuss the utility of DNA fingerprinting.
Write the names and formulae of two ores of iron.
Why do transition elements form complex compounds?
Arrange F₂, Cl₂, Br₂, and I₂ in the increasing order of electron affinities.