Explanation

• The pH value of pure water at room temperature is 7.
• A pH of 7 means the solution is neutral.
• Pure water contains equal amounts of H⁺ and OH⁻ ions.
• The pH scale ranges from 0 to 14.
• Room temperature is approximately 25°C.

Explanation

• Full form: Hyper Text Transfer Protocol Secure
• Security layer: SSL/TLS encryption
• Purpose: Secure data transfer on the internet
• Default port: 443
• Used in: Banking, e-commerce, login systems

Last verified on 23-06-2026

Explanation

• Pungent means تیکھی
• Sharp smell means تیز بو

Last verified on 21-06-2026

Explanation

• Speleology is the scientific study and exploration of caves.
• The word comes from the Greek words "spelaion", meaning "cave", and "-logy", meaning "study" or "science".

Explanation

1 radian ≈ 57.3 degrees, based on the formula: 

1 radian = 180/𝜋 degrees.

It is a standard angular measurement in mathematics and physics.

Explanation

Explanation

• Across a period: Ionization energy increases (stronger nuclear charge).
• Down a group: Ionization energy decreases (electron shielding + distance).
• Exceptions within a period:
  • Group 13: slight dip (new p subshell).
  • Group 16: slight dip (electron pairing repulsion).

Explanation

Imp means چھوٹا شیطان

Angel means فرشتہ

Explanation

Incognito means پوشیدگی

In disguise means بھیس ​​میں

Explanation

In Ruby, the syntax for defining a method is:

def method_name(parameters)

  # method body

end

The 'def' keyword is used to define a method, followed by the method name and parameters in parentheses.

The method body is indented and enclosed by the 'end' keyword.