Chemistry

Learn chemistry through quizzes on elements, reactions, bonding, and laboratory concepts across organic, inorganic, and physical chemistry.

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QUESTION NO 01

Osmotic pressure of a dilute solution is given by?

Answer: π = CRT

van't Hoff: π = CRT for dilute solutions.

Shahzad Mahota @shahzad-mahota

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QUESTION NO 02

Eutrophication is caused mainly by?

Answer: Excess nutrients (N, P) leading to algal blooms

Nutrient overload stimulates algae and depletes oxygen when they decay.

Shahzad Mahota @shahzad-mahota

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QUESTION NO 03

Precision describes?

Answer: Reproducibility of results

Precision is scatter; accuracy is closeness to truth.

Shahzad Mahota @shahzad-mahota

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QUESTION NO 04

s-block elements are in groups?

Answer: 1 and 2

Alkali and alkaline earth metals fill s orbitals.

Shahzad Mahota @shahzad-mahota

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QUESTION NO 05

Beer–Lambert law relates absorbance to?

Answer: Concentration and path length

A = εcl for dilute solutions.

Shahzad Mahota @shahzad-mahota

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QUESTION NO 06

Eutrophication is caused mainly by?

Answer: Excess nutrients (N, P) leading to algal blooms

Nutrient overload stimulates algae and depletes oxygen when they decay.

Shahzad Mahota @shahzad-mahota

302 Quizzes

2930 Questions

00 Likes

QUESTION NO 07

Raoult's law relates vapor pressure to?

Answer: Mole fraction of solvent/solute

pᵢ = xᵢ pᵢ° for ideal solutions.

Shahzad Mahota @shahzad-mahota

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QUESTION NO 08

The ideal gas equation is?

Answer: PV = nRT

Ideal gases obey PV = nRT.

Shahzad Mahota @shahzad-mahota

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QUESTION NO 09

Periodic table groups are?

Answer: Vertical columns

Groups/families are columns with similar valence configurations.

Shahzad Mahota @shahzad-mahota

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QUESTION NO 10

General formula of alkanes is?

Answer: CnH2n+2

Saturated acyclic alkanes follow CnH2n+2.

Shahzad Mahota @shahzad-mahota

302 Quizzes

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