Physicswallah Chemistry Faculty Interview Questions and Answers

Topic- Is doing MBA from IIM necessary for starting business. It was general GD. They only check confidence and communication.

Q1. All question were subject based:- 1) what is Bohr Burry scheme 2) what is variable valency 3) what is voice box what is its scientific term 4) explain the different lattice structure.
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Q1. Introduce yourself?
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Q2. Why do you want to join Byjus?
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Q3. Perform a demo about acid bases and salts
Ans. 
A demo about acid bases and salts
• Demonstrate the reaction between an acid and a base to form a salt

• Use indicators to show the change in pH during the reaction

• Explain the concept of neutralization and the formation of water as a byproduct

• Discuss the properties of acids, bases, and salts

• Show examples of common acids, bases, and salts
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Q4. What is salt and give examples
Ans. 
Salt is a compound formed by the reaction of an acid with a base. It consists of positive and negative ions and is commonly used for seasoning and preserving food.
• Salt is composed of positive ions (cations) and negative ions (anions)

• Common examples of salt include sodium chloride (table salt), potassium chloride, and calcium chloride

• Salt is formed through the reaction of an acid with a base, resulting in the neutraliza...read more
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Q5. If we react iodine with alcohol what is the byproduct
Ans. 
The byproduct of reacting iodine with alcohol is iodoalkane.
• When iodine reacts with alcohol, it replaces the hydrogen atom in the alcohol molecule.

• The resulting compound is called iodoalkane or alkyl iodide.

• The reaction is an example of a substitution reaction.

• For example, when iodine reacts with ethanol, the byproduct is ethyl iodide.
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Q6. Why we shouldn't keep mango pickle in aluminium foil
Ans. 
Aluminium reacts with the acidic content of mango pickle, leading to the formation of harmful compounds.
• Aluminium reacts with the acidic content of mango pickle

• This reaction can lead to the formation of harmful compounds

• These compounds can contaminate the pickle and make it unsafe for consumption
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Q7. Ifan element x keep on period 14 what will be its structure
Ans. 
The structure of an element in period 14 depends on its atomic number and electron configuration.
• Elements in period 14 can have various structures depending on their atomic number.

• The structure can be determined by the electron configuration of the element.

• For example, if element X has an atomic number of 57, its structure would be [Xe] 4f^14 5d^1 6s^2.
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Q8. Group 17 elements also known as what
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Group 17 elements are also known as halogens.
• Group 17 elements are highly reactive nonmetals.

• They have 7 valence electrons and tend to gain 1 electron to achieve a stable octet.

• Halogens include fluorine, chlorine, bromine, iodine, and astatine.

• They are found in various compounds and play important roles in chemistry and biology.
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Q1. What is polynomial
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Q1. ABOUT DEMO AND SUBJECT RELATED VIVA
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Q1. SUBJECT RELATED QUESTIONS
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Q1. Tell me something about yourself
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Q2. Tell me about your work experience
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Q3. Why do want to join this company?
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Q4. Some situation based question may be asked
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Q1. They will ask you to give a demo of any topic of your choice
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Q1. After the demo, they will ask questions related to your subject.
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Q1. What is Remainder Theorem?
Ans. 
Remainder Theorem states that if a polynomial f(x) is divided by x-a, then the remainder is f(a).
• It is used to find the remainder when a polynomial is divided by a linear factor.

• The remainder theorem is a consequence of the division algorithm for polynomials.

• For example, if f(x) = x^3 + 2x^2 - 5x + 3 and we want to find the remainder when f(x) is divided by x-2, we substitute 2 for x in f(x) to get f(2) = 11. Therefore
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Q2. What are real Numbers & Complex Numbers? Is Zero a complex Numbers?
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Real numbers are numbers that can be found on the number line, while complex numbers are numbers that involve imaginary numbers. Zero is not a complex number.
• Real numbers include integers, fractions, and decimals.

• Complex numbers involve the square root of negative numbers, denoted by 'i'.

• Zero is a real number, but not a complex number.

• Examples of complex numbers include 3 + 2i and -4i.
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Q1. Why do you want to be a faculty ?
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Q2. How will add value to our company ?
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