Rallis India Sales & Marketing Interview Questions and Answers

Q1. Only operation related
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Q2. Reactions of chemicals
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Chemical reactions involve the breaking and forming of chemical bonds to create new substances.
• Chemical reactions can be classified as exothermic (release heat) or endothermic (absorb heat).

• Reactants are the substances that undergo a chemical change, while products are the new substances formed.

• Chemical reactions can be represented by chemical equations, showing the reactants and products involved.

• Factors such as tempe...read more
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Q1. Hydrogenation chemical reactions distillation
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Q1. What is the ph
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pH is a measure of the acidity or alkalinity of a substance on a scale of 0 to 14.
• pH stands for 'potential of Hydrogen'

• A pH of 7 is considered neutral, below 7 is acidic, and above 7 is alkaline

• Examples of pH levels: Battery acid (pH 1), Lemon juice (pH 2), Pure water (pH 7), Baking soda (pH 9)
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Q2. What is strong alkali
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Strong alkali refers to a substance with a high pH level that can cause severe burns and irritation to skin and eyes.
• Strong alkalis have a pH level above 10

• They are highly corrosive and can cause severe burns on contact with skin

• Examples include sodium hydroxide (caustic soda) and potassium hydroxide
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What was process and safety knowledge

Q1. Process and safety
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Q1. Technical field questions like Heat Exchanger types of pumps Moc based Reactors Types of cooling Tower and safety for Equipment and parameters of temperature pressure and flow
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Q2. Difference b/w heat exchanger and condenser, thermal sock parameters of temperature pressure and flow
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Heat exchangers transfer heat between two fluids without mixing them, while condensers convert vapor into liquid by removing heat.
• Heat exchangers transfer heat between two fluids without mixing them

• Condensers convert vapor into liquid by removing heat

• Thermal sock parameters include temperature, pressure, and flow rates

• Temperature is the measure of the average kinetic energy of particles in a substance

• Pressure is the fo...read more
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Q1. What is Reactor types of.Reactor and use
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Reactors are vessels used to contain chemical reactions. Types include batch, continuous, and semi-batch reactors.
• Batch reactors are used for small-scale production and testing.

• Continuous reactors operate continuously with a steady flow of reactants and products.

• Semi-batch reactors combine features of both batch and continuous reactors.

• Examples include CSTR (Continuous Stirred Tank Reactor) and PFR (Plug Flow Reactor).
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Q2. Heat exchanger working principal and type
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Heat exchangers transfer heat between two or more fluids while keeping them separate.
• Heat exchangers work on the principle of transferring heat from one fluid to another without mixing them

• Types of heat exchangers include shell and tube, plate, and finned tube

• Examples of heat exchangers include radiators in cars and condensers in air conditioning units
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Q3. Reactions type and handling Reaction
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Q4. What is scrubber
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A scrubber is a device used to remove pollutants from exhaust gases in industrial processes.
• Scrubbers can be used to remove particulates, gases, or both from emissions.

• There are different types of scrubbers such as wet scrubbers, dry scrubbers, and gas scrubbers.

• Wet scrubbers use a liquid to wash pollutants out of the gas stream, while dry scrubbers use a dry reagent or slurry.

• Examples of scrubbers include sulfur dioxi...read more
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Q5. What is distillation and type of distillation
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Distillation is a process of separating components of a liquid mixture based on differences in boiling points.
• Distillation involves heating a liquid mixture to create vapor, then cooling the vapor to condense it back into liquid form.

• The condensed liquid is collected separately, resulting in the separation of components based on their boiling points.

• Types of distillation include simple distillation, fractional distilla...read more
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Q1. Sellery discuss
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