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With which of the given pairs CO2 resembles:
(1) HgCl2, C2H2
(2) HgCl2, SnCl4
(3) C2H2, NO2
(4) N2O and NO2
Ans: HgCl2, C2H2
Difference between mesomrism and resonance
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Compound A has the molecular formula C 4 H 8 O 2 . Figure 1 gives the infrared spectra of compound A. Table gives the chemical shifts and multiplicity data of the broad-ban
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Q. Define the Methods of shelf life examination? Methods of shelf life examination are sensory evaluation, chemical analysis and microbiological analysis.
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The valency of phosphorus in H3 PO 4 is: (1) 2 (2) 5 (3) 4 (4) 1 Ans: 5
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