Meghmani Organics Interview Questions and Answers

Q1. What is ph defination
Ans. 
pH is a measure of the acidity or alkalinity of a solution on a scale of 0 to 14.
• pH stands for 'potential of Hydrogen'

• It measures the concentration of hydrogen ions in a solution

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

• Examples: Lemon juice has a pH of around 2, while baking soda has a pH of around 9
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Q2. Potential of hydrogen range 0 to 14
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The potential of hydrogen (pH) scale measures the acidity or alkalinity of a substance on a scale of 0 to 14.
• pH values below 7 indicate acidity, with 0 being the most acidic

• pH values above 7 indicate alkalinity, with 14 being the most alkaline

• A pH of 7 is considered neutral, such as pure water

• pH is important in various industries like agriculture, food production, and water treatment
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Q1. Explain your family background
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This is chemistry based test for the QC Chemist and their questions moderate level.

Q1. What is resolution?
Ans. 
Resolution refers to the ability of a system to distinguish between two closely spaced objects or points.
• Resolution is a measure of the clarity or sharpness of an image produced by a camera or display.

• It is often expressed in terms of pixels for digital images or lines per millimeter for optical devices.

• Higher resolution results in more detailed and clearer images.

• For example, a camera with a resolution of 12 megapixel...read more
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Q2. What type of standard used in AAS?
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The standard used in AAS is the atomic absorption standard.
• Atomic absorption standard is used to calibrate and validate the accuracy of AAS instruments.

• It helps in determining the concentration of elements in a sample by measuring the absorption of light at specific wavelengths.

• Common examples of atomic absorption standards include solutions of known concentrations of elements like copper, lead, and zinc.
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Q3. What is the principal of HPLC?
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HPLC stands for High Performance Liquid Chromatography, a technique used to separate, identify, and quantify components in a mixture.
• HPLC involves a stationary phase (usually a column packed with particles) and a mobile phase (liquid solvent).

• The sample mixture is injected into the HPLC system and carried by the mobile phase through the column.

• Different components in the sample interact differently with the stationary ...read more
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Q1. Family background?
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Q2. Why we are hiring to you?
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Q1. Type of reactor
Ans. 
There are various types of reactors used in production processes, such as batch reactors, continuous stirred-tank reactors, and plug flow reactors.
• Batch reactors are used for small-scale production and allow for easy control of reaction conditions.

• Continuous stirred-tank reactors are used for continuous production and have good mixing capabilities.

• Plug flow reactors are used for reactions that require a specific reside...read more
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Q2. Types of distillation column
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Types of distillation columns include batch, continuous, fractional, and steam distillation.
• Batch distillation: Used for small-scale production and involves separating components based on boiling points.

• Continuous distillation: Used for large-scale production and involves a continuous feed of mixture and product removal.

• Fractional distillation: Used to separate components with closer boiling points by creating multiple...read more
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