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Vat dyes: These dyes are insoluble in water and cannot be helpful directly. These dyes on decline along with sodium hydrosulphite (NaHSO 3 ) in a vat make a soluble compound th
1. For what fraction of annual CO 2 emissions from fossil fuel burning are automobiles responsible? 2. A 1000-kg car travels 1.6 × 10 4 km/yr. What is the ratio of the mass of
Refining of petroleum: Petroleum (crude) extracted from earth's crust is an intimate mixture of many organic compounds. Crude petroleum needs to be purified and its components
Why the rate of ketone halogenation is independent Because the rate of ketone halogenation is independent of the halogen concentration, the rates of halogenation of the same ke
What parts of molecular forces are expected to exist between the species in any three of the following pairs constituting mixtures? (a) He and N2 (b) Cl2 and NO- 3 (c) NH
why are lanthanides and actinides called innertransition metals
The nitrogen atom has 7 protons and 7 electrons, the nitride ion (N 3 -) will have: (1) 7 protons and 10 electrons (2) 4 protons and 7 electrons (3) 4 protons and 10 e
Example for rajan rule
the measured dipole moment of-para nitroaniline (6.2D) is larger than the value calculating using empirical group moment (5.2D)
Strategy 1 Wheat flour F 3940 g is, mixed with 60g of A, B and C, yielding a ratio of chemicals to flour of 3:197 in all formulations. All mixtures are produced in total amoun
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