MAKAUT Chemistry-I (Gr-B) (BS-CH101) PYQ 2026 with Solutions

Q: What is the subject code for Chemistry-I (Gr-B)?

BS-CH101 is the MAKAUT subject code for Chemistry-I (Gr-B).

Q: Which exam is this Chemistry-I (Gr-B) question paper from?

The MAKAUT 2026 Mid Sem exam, semester 1. A student shared it, and it was checked before publishing.

Q: Which branches is this Chemistry-I (Gr-B) paper for?

It's a common paper for 8 B.Tech branches: Civil Engineering, Computer Science and Engineering, Computer Science and Engineering (Data Science), Electronics and Communication Engineering, Electrical Engineering, Information Technology, Mechanical Engineering and Computer Science and Engineering (Artificial Intelligence and Machine Learning). Every branch gets the same questions.

Q: Are there solutions for this paper?

Yes. Every question in the 2026 Chemistry-I (Gr-B) paper has a worked answer on this page, grouped like the paper. The first answer is free to read; sign in (it's free) to unlock the rest.

About this paper

The MAKAUT Chemistry-I (Gr-B) (BS-CH101) 2026 Mid Sem previous year question paper, set in semester 1. Download the verified PDF or read it online, then check your answers against the worked solutions above.

Common paper for 8 branches

Every branch listed gets the same questions. Pick a branch to see its other papers.

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Learn the exam patternSee how the MAKAUT Mid Sem paper is laid out: its groups, marks and choices.
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Frequently asked questions

5 questions

What is the subject code for Chemistry-I (Gr-B)?

BS-CH101 is the MAKAUT subject code for Chemistry-I (Gr-B).

Which exam is this Chemistry-I (Gr-B) question paper from?

The MAKAUT 2026 Mid Sem exam, semester 1. A student shared it, and it was checked before publishing.

Which branches is this Chemistry-I (Gr-B) paper for?

It's a common paper for 8 B.Tech branches: Civil Engineering, Computer Science and Engineering, Computer Science and Engineering (Data Science), Electronics and Communication Engineering, Electrical Engineering, Information Technology, Mechanical Engineering and Computer Science and Engineering (Artificial Intelligence and Machine Learning). Every branch gets the same questions.

Where can I find more BS-CH101 question papers?

On the Chemistry-I (Gr-B) subject page, which collects every year's papers along with notes and the syllabus.

Are there solutions for this paper?

Yes. Every question has a worked answer on this page, grouped like the paper. The first answer is free to read; sign in (it's free) to unlock the rest.

Solutions

Group AVery Short Answer Type Question · answer any 10 · 1 mark each

What is the full form of MRI?

Why ethyl alcohol is soluble in water but diethyl ether is not soluble in water?

Give one example of intensive property.

Give an example of compound having zero dipole moment.

How many stereo isomers are possible for 2, 3 - pentanediol?

Write the name of one reagent which is used to oxidize alcohols to acids.

What happen when Indium is doped in silicon?

Which isomerism is shown by alkenes but not by alkanes?

What is the hybridization of carbon atom carrying the negative charge?

What is electrochemical corrosion? In which electrode corrosion always takes place?

Write the increasing order of electron affinity values of O, S and Se.

What is reference electrode? Give example of a reference electrode.

Group BShort Answer Type Question · answer any 3 · 5 marks each

Explain the following reactions with a suitable example: (a) Wolf-Kishner reaction (b) Cannizaro reaction

What are the different types of hardness of water? Which cation and and anions are responsible for those different types of hardness? Why hard water is not suitable for use in boiler?

Compare the strength of intermolecular forces in H2H_2H2​ and Halogens and arrange them in increasing order w.r.t. strength. When a real gas behaves as ideal gas?

Show that, entropy of mixing of ideal gases ΔSmix>0\Delta S_{mix} > 0ΔSmix​>0.

Distinguish between diffraction and scattering. What do you understand by an isobestic point? 3 + 2

Group CLong Answer Type Question · answer any 3 · 15 marks each

(a) What is Gibb's free energy? What is the physical significance of Gibb's free energy? Prove that change in Gibb's free energy is equal to Change in Helmholtz Free energy for ideal gas under isothermal condition.

(b) State whether the following properties are extensive or intensive properties: (i) Pressure, (ii) Concentration, (iii) Entropy, (iv) Density of solid, (v) Temperature

(c) For a reaction both ΔH\Delta HΔH and ΔS\Delta SΔS are positive. Under what conditions will the reaction be spontaneous? What is state function? Give example.

Out of N2N_2N2​ and NH3NH_3NH3​, which one will have greater value for van der Waals' constant 'a' and which one will have greater value for van der Waals' constant 'b'?

What is the application of Potential Energy Surface (PES)?

Using van der Waals' equation, calculate the pressure exerted by one mole of carbon dioxide. When it occupies a volume of 0.05 litre at 100∘C100^\circ C100∘C, given that a = 3.592, b = 0.0426 and R = 0.0821 litre-atmosphere/mole/degree. Write down the different types of interaction forces.

State Hund's rule of spin multiplicity and Pauli Exclusion principle. Write down the electronic configuration of Fe (Z = 26).

Calculate the effective nuclear charge of 4s electrons of Fe (Z = 26) with the help of Slater's rule.

Define Pauling Scale of electronegativity.

Electron affinity of Cl is greater than F, explain the phenomenon.

Between BeCl2BeCl_2BeCl2​ and BaCl2BaCl_2BaCl2​ which one has more melting point and why?

Write short notes on 'Fajan's rule'.

Write notes on synthesis of aspirin. What is its medical utility?

(i) Explain why p-nitrophenol has higher boiling point than o-nitrophenol. (ii) The amine group in aniline is o- and p- orienting but during nitration by mixed acid substantial amount of m-nitroaniline is formed. - Explain.

What products are obtained when (i) Toluene is treated with alkaline KMnO4KMnO_4KMnO4​, (ii) Benzoic acid is treated with LiAlH4LiAlH_4LiAlH4​.

Free radicals are paramagnetic, carbonium ions are diamagnetic. - Explain. What is the main product of reaction of alkyl halide and potassium nitrite?

The treatment of alkyl chloride with aqueous KOH leads to the formation of alcohols, whereas in the presence of alcoholic KOH, alkenes are formed as the major products. - Explain. Name two acylating agents and their structures.

About this paper

Why solve Chemistry-I (Gr-B) PYQs?

Frequently asked questions

What is the subject code for Chemistry-I (Gr-B)?

Which exam is this Chemistry-I (Gr-B) question paper from?

Which branches is this Chemistry-I (Gr-B) paper for?

Where can I find more BS-CH101 question papers?

Are there solutions for this paper?

Have notes or the answer key for Chemistry-I (Gr-B)?

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Compare the strength of intermolecular forces in $H_2$ and Halogens and arrange them in increasing order w.r.t. strength. When a real gas behaves as ideal gas?

Show that, entropy of mixing of ideal gases $\Delta S_{mix} > 0$ .

(c) For a reaction both $\Delta H$ and $\Delta S$ are positive. Under what conditions will the reaction be spontaneous? What is state function? Give example.

Out of $N_2$ and $NH_3$ , which one will have greater value for van der Waals' constant 'a' and which one will have greater value for van der Waals' constant 'b'?

Using van der Waals' equation, calculate the pressure exerted by one mole of carbon dioxide. When it occupies a volume of 0.05 litre at $100^\circ C$ , given that a = 3.592, b = 0.0426 and R = 0.0821 litre-atmosphere/mole/degree. Write down the different types of interaction forces.

Between $BeCl_2$ and $BaCl_2$ which one has more melting point and why?

What products are obtained when (i) Toluene is treated with alkaline $KMnO_4$ , (ii) Benzoic acid is treated with $LiAlH_4$ .