☰ Menu

Place for ads

MCQs -for Competitive Exams & Improve Knowledge

Looking for MCQs? You're in the right place! Whether you're preparing for competitive exams, school boards or just aiming to improve your knowledge, we offer MCQs for all levels and subjects.

All AbbreviationsArt and CultureAwardsBooks and AuthorsCapitalsClimate / EnvironmentComputer AwarenessConstitutionCurrenciesDanceDefence and WarsDiscoveriesEminent PersonalitiesFreedom MovementGeographyHeritageHistoryLanguagesNational SymbolsScienceSports and Championships

What type of energy is associated with an objects position?

  • (A) Kinetic energy
  • (B) Potential energy
  • (C) Thermal energy
  • (D) Electrical energy

Answer: Potential energy

Potential energy is energy stored due to an objects position, such as a book resting on a shelf.

What is the chemical element with the symbol O?

  • (A) Oxygen
  • (B) Osmium
  • (C) Ozone
  • (D) Omnium

Answer: Oxygen

Oxygen (O) is a chemical element essential for respiration and combustion processes.

Which part of the plant cell is responsible for photosynthesis?

  • (A) Nucleus
  • (B) Mitochondria
  • (C) Chloroplast
  • (D) Ribosome

Answer: Chloroplast

Chloroplasts contain chlorophyll and are responsible for capturing sunlight to convert it into energy during photosynthesis.

Place for ads

What type of rock forms from cooling and solidifying lava?

  • (A) Metamorphic
  • (B) Sedimentary
  • (C) Igneous
  • (D) Volcanic

Answer: Igneous

Igneous rocks form when magma or lava cools and solidifies, examples include basalt and granite.

What is the term for the liquid portion of blood?

  • (A) Plasma
  • (B) Hemoglobin
  • (C) Platelets
  • (D) Red blood cells

Answer: Plasma

Plasma is the yellowish, liquid component of blood that transports nutrients, hormones and waste products.

Which of these is a renewable energy source?

  • (A) Coal
  • (B) Solar
  • (C) Oil
  • (D) Natural gas

Answer: Solar

Solar energy is renewable and sustainable, harnessing the Suns energy through solar panels to generate electricity.

Place for ads

What is the scientific term for the process of cell division?

  • (A) Mitosis
  • (B) Metamorphosis
  • (C) Meiosis
  • (D) Binary fission

Answer: Mitosis

Mitosis is the process where a single cell divides into two identical daughter cells, essential for growth and repair.

What type of bond is formed when electrons are shared?

  • (A) Ionic bond
  • (B) Covalent bond
  • (C) Metallic bond
  • (D) Hydrogen bond

Answer: Covalent bond

A covalent bond occurs when two atoms share electrons to achieve a stable electron configuration.

What is the main gas present in Earths atmosphere?

  • (A) Oxygen
  • (B) Carbon dioxide
  • (C) Nitrogen
  • (D) Argon

Answer: Nitrogen

Nitrogen makes up about 78% of Earths atmosphere, with oxygen being the second most abundant gas.

Place for ads

What is the smallest unit of a chemical element?

  • (A) Atom
  • (B) Molecule
  • (C) Ion
  • (D) Electron

Answer: Atom

An atom is the smallest unit of a chemical element, consisting of protons, neutrons and electrons.

Previous123Next

Place for ads

Subscribe to Our Newsletter