Sheenlac Paints QC Chemist Interview Questions and Answers

Q1. What is distillation ?
Ans. 
Distillation is a process of separating components of a mixture based on their boiling points.
• It involves heating the mixture to vaporize the component with the lowest boiling point.

• The vapor is then condensed and collected as a separate liquid.

• This process can be used to purify liquids, separate different components of a mixture, and extract essential oils from plants.

• Examples include the distillation of alcohol to ma...read more
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Q1. When you will be join ?
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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?
Ans. 
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?
Ans. 
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. Principal ofHPLC
Ans. 
HPLC is a technique used to separate, identify, and quantify components in a mixture based on their interactions with a stationary phase and a mobile phase.
• HPLC involves pumping a sample mixture through a column packed with a stationary phase, where different components interact differently and are separated based on their affinity for the stationary phase.

• The separated components are detected as they exit the column a...read more
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Q2. Formula of acid
Ans. 
The formula for an acid is typically written as HX, where X represents an anion.
• Acids are substances that donate protons (H+ ions) in a chemical reaction

• The general formula for an acid is HX, where H represents a hydrogen ion and X represents an anion

• Examples include HCl (hydrochloric acid), H2SO4 (sulfuric acid), and HNO3 (nitric acid)
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Q1. What is the principle and application of the Karl Fischer titrator?
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Q2. Gc principle
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Q1. Salaries Discussion
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Q1. What is distillation ?
Ans. 
Distillation is a process of separating components of a mixture based on their boiling points.
• It involves heating the mixture to vaporize the component with the lowest boiling point.

• The vapor is then condensed and collected as a separate liquid.

• This process can be used to purify liquids, separate different components of a mixture, and extract essential oils from plants.

• Examples include the distillation of alcohol to ma...read more
Answered by AI
Add your answer

Q1. When you will be join ?
Add your answer