HSC Science (Electronics) १२ वीं कक्षा - Maharashtra State Board Question Bank Solutions

A voltaic cell consisting of Fe²⁺(aq)| Fe(s) and Bi³⁺(aq)| Bi(s) electrodes is constructed. When the circuit is closed, mass of Fe electrode decreases and that of Bi electrode increases.

1. Write cell formula .
2. Which electrode is cathode and which electrode is anode?
3. Write electrode reactions and overall cell reaction.

What are structural isomers?

Explain the ionisation isomers.

Name the two apbroaches used to synthesize nanomaterials.

Define standard electrode potential.

Explain the zero, one and two-dimensional nanoscale system.

Match the pairs in column I (pairs of isomers) and column II (types of isomers)

Draw the geometrical isomers of the following complexes [Co(NH₃)₄Cl₂]⁺

How is glucose prepared on commercial scale?

A compound made of elements C and D crystallizes in a fee structure. Atoms of C are present at the corners of the cube. Atoms of D are at the centres of the faces of the cube. What is the formula of the compound?

Name two allotropes of sulphur.

State and explain Raoult's law for the solution of non-volatile solutes.

The standard potential of the electrode Zn²⁺_(0.02M) |Zn_(s) is − 0.76 V. Calculate the electrode potential of the zinc electrode.

Show that the half-life of zero order reaction is `t_(1/2) = ([A]_0)/(2k)`.

 The packing efficiency of bcc is ______.

Write a note on Wurtz Reaction. 

Draw the structure of cis isomers of Pt(NH₃)₂Cl₂.

Draw the structure of trans isomers of Pt(NH₃)₂Cl₂.

Calculate the emf of the following cell at 25°C.

Zn_(s)|Zn²⁺_{(0.08 M)} || Cu²⁺_{(0.l M)} |Cu_(s)

E⁰_zn = − 0.76 V, E⁰_cu = 0.36 V.

Write net cell reaction.