2023年1月24日 · Fermentation in Biology is an important chapter in NCERT 10th grade. Embibe offers a range of study materials that includes PDF of NCERT books, previous year question papers and solution sets for each chapter. Students can follow these solution sets to understand the correct approach that needs to be followed to answer the questions appropriately.

Explain sp 2 hybridisation in BF 3. 1. Kossel-lewis approach to chemical bonding: (i) The force which holds the atoms together in a molecule is called a chemical bond.

BF 3 is hypovalent molecule. SF 6 is hypervalent molecule. Galena is an important ore of lead. Na 3 BO 3 exists but Na 3 PO 3 not. Molecular formula of sodium chloride is NaCl. Iodine phosphate is an ionic compound. Ionic compounds are weak …

In Kjeldahl's estimation of nitrogen, CuSO4 acts as: Kjeldahl's method is used for the estimation of nitrogen. The organic compound is heated with conc. H2 SO4 in presence of K2 SO4 and a little CuSO4 to convert all the nitrogen into (NH4)2 SO4.K2 SO4 raises the boiling point of H2 SO4 while CuSO4 catalyses the reaction. Hence, D is the answer.

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(d) Linear Pair of Angles - Angles which are pair wise adjacent and combined, form a straight line. Here ∠ A O B & ∠ B O C and ∠ B O C & ∠ C O B are pair wise adjacent and all combined, …

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2023年1月24日 · Bond Polarity is the measure of the extent to which a bond exhibits polarity. In simple words, a bond polarity is a scientific tool that gives us an idea about the nature of the bonds and the type of bonding they will undergo to form compounds.

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