Science – GK Questions

Free practice for SSC, UPSC, Banking & Railway exams. No login required.

Showing 321–340 of 399 questions
science hard True/False Chemistry - Chemical Equilibrium UPSC CSE, SSC Scientific Assistant, Engineering Services

True or False: At equilibrium, the forward and reverse reaction rates are zero.

  1. True
  2. False
science medium MCQ Technology - Internet of Things UPSC CSE, Banking Specialist Officer, SSC CHSL

IoT stands for:

  1. Internet of Technology
  2. Internet of Things
  3. Integration of Tools
  4. Interface of Tasks
science easy Fill in the Blank Physics - Electricity Railway ALP, SSC JE, Banking Clerk

Ohm's law states that V = I × ________.

  1. Power
  2. Resistance
  3. Capacitance
  4. Inductance
science medium True/False Biology - Cell Division UPSC CSE, SSC Scientific Assistant, CSIR NET

True or False: Meiosis results in four genetically identical daughter cells.

  1. True
  2. False
science hard MCQ Chemistry - Biomolecules SSC CGL, Railway NTPC, UPSC CAPF

Which vitamin is water-soluble?

  1. Vitamin A
  2. Vitamin D
  3. Vitamin K
  4. Vitamin C
science medium Fill in the Blank Environmental Science - Soil Conservation UPSC Prelims, SSC CGL, Railway NTPC

Planting trees in rows to reduce wind speed and prevent soil erosion is called ________.

  1. Contour ploughing
  2. Terracing
  3. Shelter belts
  4. Crop rotation
science medium True/False Physics - Sound Railway ALP, SSC CHSL, Banking IBPS

True or False: The pitch of sound depends on its amplitude.

  1. True
  2. False
science easy MCQ Biology - Ecology SSC MTS, Railway Group D, Banking Clerk

Organisms that prepare their own food are called:

  1. Heterotrophs
  2. Autotrophs
  3. Saprotrophs
  4. Parasites
science medium Fill in the Blank Chemistry - p-Block Elements SSC CGL, Railway NTPC, UPSC NDA

The element responsible for the hardness of diamond is ________.

  1. Silicon
  2. Carbon
  3. Boron
  4. Nitrogen
science medium MCQ Physics - Optics Railway JE, SSC JE, Banking Specialist Officer

Total internal reflection occurs when light travels from:

  1. Rarer to denser medium
  2. Denser to rarer medium
  3. Vacuum to glass
  4. Air to water
science medium Fill in the Blank Biology - Human Endocrine System SSC CGL, Railway NTPC, UPSC CAPF

The hormone insulin is secreted by the ________ of pancreas.

  1. Alpha cells
  2. Beta cells
  3. Delta cells
  4. Acinar cells
science hard True/False Chemistry - Coordination Compounds UPSC CSE, SSC Scientific Assistant, CSIR NET

True or False: EDTA is a monodentate ligand.

  1. True
  2. False
science medium MCQ Environmental Science - Sustainable Development UPSC Prelims, SSC CGL, Railway NTPC

How many Sustainable Development Goals (SDGs) were adopted by UN in 2015?

  1. 15
  2. 17
  3. 20
  4. 25
science medium Fill in the Blank Physics - Units SSC JE, Railway NTPC, Banking IBPS

The SI unit of luminous intensity is ________.

  1. Lumen
  2. Lux
  3. Candela
  4. Watt
science easy True/False Biology - Photosynthesis SSC CGL, Railway NTPC, UPSC NDA

True or False: Oxygen released during photosynthesis comes from water molecules.

  1. True
  2. False
science hard MCQ Chemistry - Chemical Kinetics UPSC CSE, SSC Scientific Assistant, CSIR NET

The rate of a chemical reaction doubles for every 10°C rise in temperature. This is described by:

  1. Arrhenius equation
  2. Le Chatelier's principle
  3. Hardy-Schulze rule
  4. Van't Hoff rule
science easy Fill in the Blank Technology - Renewable Energy SSC MTS, Railway Group D, Banking Clerk

Biogas primarily consists of ________ and carbon dioxide.

  1. Hydrogen
  2. Methane
  3. Oxygen
  4. Nitrogen
science medium MCQ Biology - Immunology SSC CGL, Railway NTPC, UPSC CAPF

Which cells produce antibodies in the human body?

  1. Red blood cells
  2. Platelets
  3. B-lymphocytes
  4. T-lymphocytes