Explanation

• Meticulous means محتاط
• Conscientious means باضمیر
• Precise means عین مطابق

• Painstaking means بہت محتاط اور درست

Last verified on 23-05-2026

Explanation

• 760 torr = 101,325 Pa
• 760 torr = 1 atm
• 760 torr = 760 mmHg
• SI Unit of Pressure: Pascal (Pa)

Last verified on 09-07-2026

Explanation

• Oxidation of secondary alcohols produces ketones.
• Secondary alcohols have –OH group attached to a carbon bonded with two other carbons.
• During oxidation, hydrogen is removed and a carbonyl (C=O) group is formed.

Additional information:

• Primary alcohol → Aldehyde → Acid
• Secondary alcohol → Ketone (stops here)
• Tertiary alcohol → No easy oxidation

Last verified on 05-06-2026

Explanation

Let's analyze the sequence:15, 14, 12, 9,?

The pattern seems to involve subtracting decreasing amounts:

15−1=14

14−2=12

12−3=9

Following this pattern, the next subtraction should be:

9−4=5

Thus, the missing term is 5.

Explanation

During crossing over in meiosis I, homologous chromosomes exchange different segments, leading to genetic recombination and increased variation.

Explanation

Explanation

The functional group for a ketone is a carbonyl group (C=O), where the carbonyl carbon is bonded to two other carbon atoms.

The general formula for a ketone is R–C(=O)–R' or CnH2nO;

Where the central carbon atom is double-bonded to an oxygen atom and single-bonded to two alkyl or aryl groups (R and R'). The simplest ketone is propanone (acetone), with the formula C₃H₆O.  

Explanation

Adding more SO₂ – This would increase the yield by shifting the equilibrium toward the product (Le Chatelier's principle).

Explanation

Explanation

The momentum 

𝑝 of a photon is given by the equation:

𝑝=ℎ/𝜆 

where:

h is Planck's constant,

λ is the wavelength of the photon.

Since photons are massless, their momentum is not related to mass but to their wavelength.