27S1 Memory-Based Qs: Physics, Maths & Chemistry (60+)

27S1 Memory-Based Qs: Physics, Maths & Chemistry

Intro Notes
Maths Questions
Physics Questions
Chemistry Questions
LR & English Notes

---

Intro Notes

Edit: Some corrections/additions have been

done with the help of fellow 27S1 students,

Thanks to them.

Now we have around 60 Qs, thank you

everyone

Maths

This type of Q was asked don’t remember exact

details

Some (2k+1)2

type was there in denominator

Side given is a

Physics

At a certain temp. The ratio of pressure by

volume is constant. This law is called....

Chemistry (Salt Analysis)

There was one question like two white

substances are mixed in aqueous solution

and a yellow product is formed. KCl and

PbNO3 or KNO3 or PbCl or Both nitrates or

chlorides. (Plzz check this one not very

sure…)

Liquids were water and oil

(With replacement)

Generally 3 statements given hote hai

1st is the equation 2nd is x ka constraint and

the 3rd is y ka constraint

The option were like

a) 1st equation only

b) 2nd and 3rd equation only

c) 1st 2nd and 3rd equation

d) insufficient

The question had asked what all info is

required to minimize/maximise(yaad ni) z

(Similar solved example from textbook for reference)

d) is E+Y

Chemistry

Yr in this question there was a reverse arrow from

B to A too

Maths

20-30 30-40 40-50 50-60 60-70 70-80

11 13 12 9 8 7

basically left ke 2 columns aur right ke 3

columns me same total readings thi, aur

options 22.14, 22.41, 23.21, none type ki di

hui thi , we had to find the mode of the

distribution

In waves question, it was a tube/pipe open on both ends

The question was what is the PE and KE graph

for a organ pipe that is closed at one end

Question was to find the equivalent capacitance

(data might be incorrect)

Time was 5 seconds, and options were

A) +3W, B) -3W, C) +30W, D) -30W

It was 0.4 and option mei ig 24 N tha

Chemistry OC

Cyclohexanecarboxamide + LiAlH4 +

3CH3Cl + Ag2O + heat →

(not 100% sure about C in this Q)

Hey denominator mei x-1 tha

English

The correct spelling is:

1) millennium

2) milenium

3) millennium

4) millenium

Maths

The following Q is incomplete or somewhat

incorrect, kindly chip in if you recall it.

Maths

Basic lpp question

Two inequalities and Z=() were given and

options had optimal solutions with value of Z.

Had to choose which of them was correct (dont

remember the equations)

Bro do you remember the LR question above

and the maths tangent/normal question

Physics

options had relation between T2 T3 and T4 and

sin/cos(alpha) and sin/cos(beta)

Chemistry

Which property can be used to know purity of a

substance? Mp Bp magnetic or none

crystal lattice was also an option here

Chemistry

Three compounds given with same IUPAC name

except difference in R/S and E/Z nomenclature,

assign R/S/E/Z correctly

Chemistry

Some compound given then asked if trans isomer

will have lesser/more BP etc (don’t remember full

Physics

If two particles of mass m and charge q each have

same value of Gravitational force and Electrostatic

force separated by distance r, and value of

(4πε0G)=10-20

then the value of (q/m) is?

(answer was 10-10

I think)

If sand from something is slowly poured onto a

weight balance at a steady rate λ and then a mass

of M is weighted on the scale the weight measured

a) λt + √2gh

b) λt

Yaad nahi hai but if i remember it right the options

were solvable using dimension checking

Physics

The SI units of Luminance is?

1) dc/cm2

2) dc/m2

3) cd/cm2

4) cd/m2

(This is the exact Q, with correct options)

Chemistry

The ratio of molecular formula to empirical formula

of glucose is?

(answer was 6)

Maths

cot -1

(2)+cot-1

(8)..... Aka 2r^2 series ka summation.

Chemistry

Cis-2-butene and Trans-2-butane, how many of the

following are correct

I. Cis has higher MP

Ii. Trans has higher BP

Iii. Cis is soluble in polar solvent

Iv. Trans is soluble in polar solvent

(something very similar)

Maths

A question based on PS + PS’ = 2a where P

was (x,y), S was (-3,0) and S’ was (3,0) and

a was 5 then locus of P ?

A)ellipse

B)straight line

C)hyperbola

(I dont remember the last option and S and S’ might be

different i dont remember it properly but this was the

question)

Chemistry

Which of the following will not be stable in

acid?

1) NaHCO3 and Na2CO3

NaOH and NaHCO3

NaOH and Na2CO3

Code coding coded

Wear wearing ___

a) wore

b) worn

c) worned

d) something

Maths

20 digits are selected at random. What is the

probability the number will be divisible by 8?

Physics

Given a position time graph, which of the

following statements are correct?

a) Region 1 had positive acceleration

b) region 1 and 2 have positive acceleration

c) Region 1 has negative acceleration

d) Region 1 has negative and 2 has positive

acceleration

Physics

I remember one option was insufficient

info

Maths Questions

Maths

This type of Q was asked don’t remember exact

details

Some (2k+1)2

type was there in denominator

Side given is a

Physics Questions

Physics

At a certain temp. The ratio of pressure by

volume is constant. This law is called....

In waves question, it was a tube/pipe open on both ends

The question was what is the PE and KE graph

for a organ pipe that is closed at one end

Question was to find the equivalent capacitance

(data might be incorrect)

Time was 5 seconds, and options were

A) +3W, B) -3W, C) +30W, D) -30W

It was 0.4 and option mei ig 24 N tha

Physics

The following Q was asked what is the maximum force on a rod when the rod is heated or info was provided in the figure (memory incomplete)

Physics

The SI units of Luminance is?

1) dc/cm2

2) dc/m2

3) cd/cm2

4) cd/m2

(This is the exact Q, with correct options)

Physics

What was the momentum or energy relationship? (various mini questions)

There was one question like two white substances are mixed in aqueous solution and a yellow product is formed. KCl and PbNO3 or KNO3 or PbCl or Both nitrates or chlorides. (Plzz check this one not very sure…)

Liquids were water and oil

(With replacement)

Chemistry

Yr in this question there was a reverse arrow from B to A too

Chemistry OC

Cyclohexanecarboxamide + LiAlH4 +

3CH3Cl + Ag2O + heat →

(not 100% sure about C in this Q)

Hey denominator mei x-1 tha

Chemistry

In this question there was a reverse arrow from B to A too

Chemistry

Three compounds given with same IUPAC name

except difference in R/S and E/Z nomenclature,

assign R/S/E/Z correctly

Chemistry

Some compound given then asked if trans isomer

will have lesser/more BP etc (don’t remember full

Chemistry

Which property can be used to know purity of a

substance? Mp Bp magnetic or none crystal lattice was also an option here

Chemistry

If order of reaction is (x) when concentration of reactant is (y). The order becomes (x/4) when the reactant is (y/2) then calculate the value of k?

(x and y given)

Chemistry

What is the order of Crystal Field Splitting Energy in

I-, Cr2+, CN-, NCS-?

Chemistry

If a disk and hoop have the same radius, same mass, same angular momentum, which has higher kinetic energy?

a) disk

b) hoop

c) both have equal kinetic energy

Chemistry

What is the correct spelling of millennium? 1) millennium 2) milenium 3) millennium 4) millenium

Chemistry

Which of the following will not be stable in acid?

1) NaHCO3 and Na2CO3

NaOH and NaHCO3

NaOH and Na2CO3

Chemistry OC

Cis-2-butene and Trans-2-butane, how many of the following are correct

I. Cis has higher MP

Ii. Trans has higher BP

Iii. Cis is soluble in polar solvent

Iv. Trans is soluble in polar solvent

(something very similar)

Chemistry

What is the 'order of bond angle in SO4 2- , SO3, SO2' ? (fragment)

LR & English Notes

Code coding coded

Wear wearing ___

a) wore

b) worn

c) worned

D) something

English

The correct spelling is:

1) millennium

2) milenium

3) millennium

4) millenium

Additional Notes / Misc Entries

Maths

20 digits are selected at random. What is the

probability the number will be divisible by 8?

Physics

Given a position time graph, which of the

following statements are correct?

a) Region 1 had positive acceleration

b) region 1 and 2 have positive acceleration

c) Region 1 has negative acceleration

d) Region 1 has negative and 2 has positive

acceleration

Physics

I remember one option was insufficient info

Maths

The following Q is incomplete or somewhat

incorrect, kindly chip in if you recall it.

Basic lpp question

Two inequalities and Z=() were given and

options had optimal solutions with value of Z.

Had to choose which of them was correct (dont

remember the equations)

Physics

If sand from something is slowly poured onto a

weight balance at a steady rate λ and then a mass

of M is weighted on the scale the weight measured

a) λt + √2gh

b) λt

c) d)

Code coding coded

Wear wearing ___

a) wore

b) worn

c) worned

d) something

Note: The above content captures all questions and notes as provided in the source document. Some lines are fragmentary or context-specific (e.g., references to PS + PS’, LR, IUPAC name variants, and shorthand notations). The goal here is a faithful, verbatim export suitable for reassembly or reference, preserving every data point, option, and detail present in the original material.