Science (English Medium) Class 12 - CBSE Question Bank Solutions

Chloropicrin is formed by the reaction of ____________.

Fitting reaction can be used to prepare ____________.

In the following reaction:

\[\ce{C2H5-O-C2H5 + 4[H] ->[Red] 2X + H2O}\] X is:

tert-Butyl methyl ether on heating with HI gives a mixture of ____________.

Which of the following biomolecules is insoluble in water?

The protein responsible for blood clotting is ____________.

The helical structure of protein is stabilized by:

The correct statement for protein haemoglobin.

Which functional group participates in disulphide bond formation in proteins?

Alkali halids do not show Frenkel defect because ____________.

Which of the following crystals does not exhibit Frenkel defect?

Silver halides generally show:

What is the effect of Frenkel defect on the density of ionic solids?

In a Schottky defect ____________.

Which of the following aqueous solutions should have the highest boiling point?

\[\ce{CH3CH2CH2Br + NaCN -> CH3CH2CH2CN + NaBr}\], will be fastest in:

A dihalogen derivative ‘X’ of a hydrocarbon with three carbon atoms react with ale. KOH and produces hydrocarbon which forms red ppt. with ammonical Cu₂Cl₂. ‘X’ gives an aldehyde on reaction with aq. KOH. The compound ‘X’ is:

Which of the following has the lowest boiling point?

Which of the following statement is correct:

Major product obtained on reaction of 3-Phenyl propene with HBr in presence of organic peroxide.