# Write a balanced equation for the reduction of nitrobenzene to aniline by iron

Said reduction alkylation is carried out in mixture of hydrogen and carbon dioxide in molar ratio approximately of 3: Off-gases may be recycled. MMA is widely used in the production of products of organic synthesis of dyes, pharmaceuticals, coatings, polymer additives and gasoline. Recently, the main consumer of MMA is the petrochemical industry, where based on it created a number of anti-knock additive to gasoline. The physical state of chemicals is also very commonly stated in parentheses after the chemical symbol, especially for ionic reactions.

When stating physical state, s denotes a solid, l denotes a liquid, g denotes a gas and aq denotes an aqueous solution. If the reaction requires energy, it is indicated above the arrow.

Other symbols are used for other specific types of energy or radiation. The law of conservation of mass dictates that the quantity of each element does not change in a chemical reaction.

Thus, each side of the chemical equation must represent the same quantity of any particular element. Likewise, the charge is conserved in a chemical reaction.

Therefore, the same charge must be present on both sides of the balanced equation.

## NCERT SOLUTIONS

One balances a chemical equation by changing the scalar number for each chemical formula. Simple chemical equations can be balanced by inspection, that is, by trial and error. Another technique involves solving a system of linear equations. Balanced equations are written with smallest whole-number coefficients. If there is no coefficient before a chemical formula, the coefficient 1 is understood.

The method of inspection can be outlined as putting a coefficient of 1 in front of the most complex chemical formula and putting the other coefficients before everything else such that both sides of the arrows have the same number of each atom. If any fractional coefficient exists, multiply every coefficient with the smallest number required to make them whole, typically the denominator of the fractional coefficient for a reaction with a single fractional coefficient.

As an example, seen in the above image, the burning of methane would be balanced by putting a coefficient of 1 before the CH: Looking at the next atom hydrogenthe right-hand side has two atoms, while the left-hand side has four.

To balance the hydrogens, 2 goes in front of the HO, which yields: It can be balanced by putting a 2 before O, giving the balanced equation: Matrix Method Generally, any chemical equation involving J different molecules can be written as:Class 12 Important Questions for Chemistry – Amines.

By. Neepur Garg - November 15, WhatsApp. Facebook. Twitter. Reduction of nitrobenzene by which of the following reagent gives aniline? (i) Sn/HCl (ii) Fe/HCl Only a small amount of HCl is required in the reduction of nitro compounds with iron scrap and HCl in the presence of.

Guided textbook solutions created by Chegg experts Learn from step-by-step solutions for over 22, ISBNs in Math, Science, Engineering, Business and more Include a balanced chemical equation i.

1 answer 2.a) Oxidation occurs in one part of the Cu/Cu electrolytic cell in this experiment. Write a chemical equation to represent this.

b. The oxidation reaction of iron and oxygen to form the substance that is commonly called rust occurs according to this equation: 4Fe + 3O 2 = 2Fe 2 O 3.

## Answers to Multiple Choice Questions

Water is also required for this reaction to occur, but because the total amount of water does not change, it is not included in the equation. The reduction of nitrobenzene can also be carried out with iron borings in aqueous acid. When aniline is heated with organic acids, it gives amides, called anilides, such as acetanilide from aniline .

BENZENE DIAZONIUM CHLORIDE Preparation From phenylamine (which can be made by reduction of nitrobenzene) reagents nitrous acid and hydrochloric acid conditions keep below 10°C equation C6H5NH2 + HNO2 + HCl ——> C 6H5N2+ Cl¯ + 2H2O.

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