HSC Science कक्षा १२ - Tamil Nadu Board of Secondary Education Question Bank Solutions

Explain the mechanism of cleansing action of soaps and detergents.

  Identify the product (s) is / are formed when 1 – methoxy propane is heated with excess HI. Name the mechanism involved in the reaction 

Write the Zwitter ion structure of alanine

Predict the major product, when 2-methyl but -2-ene is converted into an alcohol in method.

Acid catalysed hydration.

Define pH.

In acid medium, potassium permanganate oxidizes oxalic acid to ____________.

Which of the following statements is not true?

Permanganate ion changes to ____________ in acidic medium.

How many moles of I₂ are liberated when 1 mole of potassium dichromate react with potassium iodide?

The number of moles of acidified KMnO₄ required to oxidize 1 mole of ferrous oxalate (FeC₂O₄) is ____________.

Describe the preparation of potassium dichromate.

Complete the following.

\[\ce{C6H5CH3 ->[acidified][KMnO4]?}\]

Complete the following.

\[\ce{MnO^-_4 + Fe^2+ ->?}\]

Complete the following.

\[\ce{KMnO4 ->[\Delta][Red hot]?}\]

Complete the following.

\[\ce{Cr2O^2-_7 + I^- + H^+ ->?}\]

Complete the following.

\[\ce{Na2Cr2O7 + KCl ->?}\]

Explain why Cr²⁺ is strongly reducing while Mn³⁺ is strongly oxidizing.

An excess of silver nitrate is added to 100 ml of a 0.01 M solution of pentaaquachloridochromium (III) chloride. The number of moles of AgCl precipitated would be

IUPAC name of the complex K₃[Al(C₂O₄)₃] is ____________.

A magnetic moment of 1.73 BM will be shown by one among the following