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Chemistry

Which acid is present in vinegar?

A
Sulfuric acid
B
Hydrochloric acid
C
Acetic acid
D
Nitric acid
Chemistry

The SI unit of amount of substance is:

A
Gram
B
Mole
C
Litre
D
Kilo gram
Chemistry

Which element is known as the lightest element?

A
Helium
B
Hydrogen
C
Nitrogen
D
Oxygen
Chemistry

The chemical symbol of Gold is:

A
Gu
B
Gd
C
Au
D
Ag
Chemistry

Who discovered the electron?

A
Rutherford
B
Bohr
C
Chadwick
D
J.J. Thomson
Computer

Which gas is most abundant in Earth's atmosphere?

A
Carbon dioxide
B
Oxygen
C
Nitrogen
D
Hydrogen
Chemistry

The atomic number of Carbon is:

A
12
B
14
C
6
D
8
Chemistry

What is the chemical formula of water?

A
H?O?
B
H?O
C
HO2
D
H?O
Current Affairs

Which among the following presided over the 2026 National Conference on Prison Reforms?

A
Umar Ata Bandial
B
Yahya Afridi
C
Qazi Faez Isa
D
None of these
Current Affairs

All chief ministers of Sindh, Balochistan and KP singed which of the following in July 2026?

A
Islamabad Declaration on Prison Reforms
B
Islamabad Declaration on Judicial Reforms
C
Islamabad Declaration on Political Reforms
D
None of these