Amines — Chemistry STD 12 Science — Question

(a) What type of protein is present in keratin?
(b) Write the reactions showing the presence of following in the open structure of glucose:
   i. an aldehyde group
  ii. a primary alcohol
(c) What products would be formed when a nucleotide from DNA containing thymine is hydrolysed?
(d) Amino acids show amphoteric behaviour. Why?
(e) What are a Amino Acids? Give examples.
(f) a. How can you explain the absence of an aldehyde group in the pentaacetate of D-glucose?
    b. Name the bases present in RNA. Which one of these is not present in DNA?
(g) Which monosaccharide units are present in starch, cellulose and glycogen and which linkages link these units?

State Werner's co-ordination theory.

What is the difference between lanthanoids and actinoids?

Using IUPAC norms write the formulas for the following:
a. Tetrahydroxozincate(II)
b. Potassium tetrachloridopalladate(II)
c. Diamminedichloridoplatinum(II)
d. Potassium tetracyanonickelate(II)
e. Pentaamminenitrito-O-cobalt(III)
f. Hexaamminecobalt (III) sulphate
g. Potassium tri(oxalato) chromate(III)
h. Hexaammineplatinum(IV)
i. Tetrabromidocuprate(II)
j. Pentaamminenitrito-N-cobalt(III)

On the basis of crystal theory, octahedral in the presence of strong field ligand and weak field ligand. Explain the difference in crystal field splitting.

Benzene and toluene form ideal solution over the entire range of composition. The vapour pressure of pure benzene and toluene at 300 K are 50.71 mm Hg and 32.06 mm Hg respectively. Calculate the mole fraction of benzene in vapour phase if 80 g of benzene is mixed with 100 g of toluene.

Write only the principle for the manufacturing of sulphuric acid by contact process?

What are the main differences between physical adsorption and chemical adsorption ?