PUC Science 2nd PUC Class 12 - Karnataka Board PUC Question Bank Solutions for Chemistry

Write the main product(s) in each of the following reactions:

Write the formula for the following complex:

Pentaamminenitrito-O-Cobalt(III)

Name the reagents used in the following reactions:

Complete the following equation :

`2MnO_4^(-)+6H^++5NO_2^(-)rarr`

How do you convert the following : Propan-2-ol to 2-methylpropan-2-ol

An aromatic compound 'A' of molecular formula C₇H₇ON undergoes a series of reactions as shown below. Write the structures of A, B, C, D and E in the following reactions :

A first order reaction takes 30 minutes for 50% completion. Calculate the time required for 90% completion of this reaction.

(log 2 = 0.3010)

How much charge is required for the reduction of 1 mol of Zn²⁺ to Zn?

Using IUPAC norms write the formulate for the following coordination compound: 

Hexaamminecobalt(III) chloride

Using IUPAC norms write the formulate for the following coordination compound:

Potassium tetrachloridonickelate (II)

How do you convert the following: C₆H₅CONH₂ to C₆H₅NH₂

How do you convert the following: Ethanenitrile to ethanamine

Complete the following equations : 2 MnO₂ + 4 KOH + O₂ →

Complete the following equations : 2 Na₂CrO₄ + 2 H ⁺ →​

Write the structures of the main products when acetone (CH₃ − CO − CH₃) reacts with the following reagents :

CH₃MgBr and then H₃O⁺

Write the names of monomers used for getting the following polymer:

Neoprene

Give the structures of A, B and C in the following reactions :

Give the structures of A, B and C in the following reactions :

Define the following terms : Molarity

Complete the following equations:Cr₂O₇^2- + 2OH^- →