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Q. Structure of Covalent Bonds? Ans. A covalent bond forms between elements that are near each other in the periodic table While an ionic bond involves an exchange of e
Q. Determine the best method of preparing a stable emulsion? To determine the best method of preparing a stable emulsion like mayonnaise. • learn the process of preparation
propene+NaNH2 and after with C2H5Br
Draw a two-dimensional model of a closed-packed assembly of spheres. Change this model into a three-dimensional one. How many dissimilar possibilities are there of stacking a)
Q. Define the Normality of solutions? Ans. Sometime normality is used to measure concentration. Normality (abbreviated N) is the number of gram-equivalent masses of solute in 1
free energy and spontaeity
Pennies made after 1982 are made of 97.5% zinc and 2.5% copper instead of 95% copper and 5% zinc. Pree 1982 pennies weighed 3.10g. The penny contained 2.95g of zinc and 0.15g of co
Semisynthetic polymers These polymers are mainly derived from naturally taking place polymers by chemical changes. Since cellulose is naturally taking place polymers, cellulose
Q. What are the Subatomic Particles? Ans: What does the inside of atom look like? Following Dalton's discovery that all matter was composed of atoms, scientists wondered i
The valency of phosphorus in H3 PO 4 is: (1) 2 (2) 5 (3) 4 (4) 1 Ans: 5
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