What are polar protic and polar aprotic solvents?

Why do we find negligible vegetation on mountain tops?

In the given figure, $AB = AC$, $\angle A = 48^\circ$, and $\angle ACD = 18^\circ$. The correct option is:

A $BC = BD$

B $BD = DC$

C $BC = CD$

D $BC = 2BD$

Insert commas suitably and write the names according to the Indian System of Numeration 50801592.

Option 1) 5,08,01,592

Option 2) 50,80,15,92

Option 3) 5,08,01,592

Option 4) 5,08,0,1592

What is mitosis in brief and how is the process happening in sexual reproduction?

Which of these sets lists the major greenhouse gases?

• Nitrous Oxide, Carbon Dioxide, and Methane

• Nitrogen, Oxygen, Argon

• Nitrous Oxide, Oxygen, and Methane

• Nitrogen, Carbon Dioxide, and Methane

The word DATA is derived from the Latin word ________.

• Option 1) Date

• Option 2) Datum

• Option 3) Dot

• Option 4) Datum

The IUPAC name of is:

Option 1) 1-bromo-2-chloro-3-fluoro-6-iodobenzene Option 2) 2-bromo-1-chloro-5-fluoro-3-iodobenzene Option 3) 4-bromo-2-chloro-5-fluoro-1-iodobenzene Option 4) 2-bromo-3-chloro-1-fluoro-5-iodobenzene

In the reaction, $\mathrm{As}{2} \mathrm{S}{3} + \mathrm{xNO}{3}^{-} + \mathrm{yH}^{+} \rightarrow 2 \mathrm{AsSO}{4} + \mathrm{zNO}{2} + \mathrm{aS} + 2 \mathrm{H}{2} \mathrm{O}$.

Find the coefficients $x$, $y$, $z$, and $a$ respectively:

A $10, 4, 10, 3$ B $5, 4, 5, 3$ C $4, 10, 3, 10$ D None of these

The sum of the arithmetic sequence 5, 10, 15, 20 is
Option 1)

100

Option 2)

25

Option 3)

50

Option 4)

75

A triangle has altitudes:

• 1

• 2

• 3

• infinite

How many kilograms of sweets worth ₹110 per kg must be mixed with 30 kg of sweets of ₹80 per kg to produce a mixture which costs ₹100 per kg? Write each step.

A can do a piece of work in 7 days, A and B can do the work together in 6 days. If B alone does the work, how many days does he require?

Option 1) 40

Option 2) 42

Option 3) 43

Option 4) 45

Which main standards are used in various functional areas?

If the equation x^2 + (a - b)x + (1 - a - b) = 0 has real and unequal roots for all the real values of b, then:

A) a < 1
B) a > 1
C) -1 < a < 1
D) -infinity < a < +infinity

If the frequency of a wave is 360 Hz and the distance between two nearest compression and rarefaction is 1 m, then the velocity of the wave is:

Option 1) 720 m/s

Option 2) 180 m/s

Option 3) 360 m/s

Option 4) 90 m/s

Why were capital cities fortified?

• Forts offered protection from attacks.

• Forts showcased the power and might of rulers.

• Forts enabled rulers to control people, land, and trade.

• Forts enclosed the capital city and involved a lot of planning.

Potential energy of your body is minimum when:

• You are standing
• you are sitting on a chair
• you are sitting on the ground
• you are sleeping on the ground

The 4th term of an AP is equal to 3 times the first term and the 7th term exceeds twice the 3rd term by 1. Find the first term and the common difference.

What is the Ecosystem pyramid?