MCQ
Which electron is associated with the least energy
- A$n = 3, l = 2, m = -2, s = +\frac {1}{2}$
- ✓$n = 4, l = 0, m = 0, s = +\frac {1}{2}$
- C$n = 4, l = 1, m = + 1, s = +\frac {1}{2}$
- D$n = 5, l = 0, m = 0, s = +\frac {1}{2}$
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$(a)$ Heated : it is charred
$(b)$ $I_2$ solution : no violet colour
$(c)$ Fehling solution : reddish brown ppt. is observed
$(d)$ It does not reduce copper$(II)$ acetate to $Cu_2O$ . No red precipiated is observed in $5/ min$
The carboxylate which satisfy all the above observation
$(A)$ Albumin is a simple protein
$(B)$ The amino acid alanine contains an acidic side chain
$(C)$ Insulin is a hormone
$(D)$ Muscles contain the protein keratin
Point out the wrong statements in the above set of statements
($R = 0.082\, L\, atm\, mol^{-1}\, K^{-1}$, Molar mass of $S = 32\, g\, mol^{-1}$, molar mass of $N = 14\, g\, mol^{-1}$)