1.
To find out number of neutrons in an atom, we need to know the
2.
The attraction of two ions due to opposite charge is known as
3.
To trace the path of phosphorus, the isotope of phosphorus which is added to the fertilizers, is
4.
If the mass of protons and neutrons is 1, then the mass of electron is
5.
The name of physicist who discovered the nucleus of atom was
6.
Sodium ion has
7.
Radioactive particles give off
8.
The formula that shows the number and kind of atoms which a substance of a molecule contained, is known as
9.
Sodium becomes a cation when
10.
The symbol of potassium is
Read More Section(Science Mcqs)
Each Section contains maximum 70 questions. To get more questions visit other sections.
- Chapter 10: Forces Effects - Science Mcqs for Grade 7 - (27)
- Chapter 10: Living Things & Environment - Science Mcqs for Grade 6 - (138)
- Chapter 10: Rock Cycle - Science Mcqs for Grade 8 - (29)
- Chapter 11: Heat Transfer - Science Mcqs for Grade 7 - (129)
- Chapter 11: Micro Organisms - Science Mcqs for Grade 6 - (89)
- Chapter 11: Rocks & Weathering - Science Mcqs for Grade 8 - (29)
- Chapter 12: Human Transport System - Science Mcqs for Grade 7 - (85)
- Chapter 12: Physical Quantities & Measurements - Science Mcqs for Grade 6 - (65)
- Chapter 12: Sound & Hearing - Science Mcqs for Grade 8 - (36)
- Chapter 13: Importance of Water - Science Mcqs for Grade 7 - (109)
- Chapter 13: Plant Growth - Science Mcqs for Grade 6 - (51)
- Chapter 14: Investigating Space - Science Mcqs for Grade 7 - (257)
- Chapter 14: Plant Photosynthesis & Respiration - Science Mcqs for Grade 6 - (52)
- Chapter 15: Mixtures - Science Mcqs for Grade 7 - (53)
- Chapter 15: Reversible & Irreversible Changes - Science Mcqs for Grade 6 - (33)
- Chapter 16: Physical & Chemical Changes - Science Mcqs for Grade 7 - (166)
- Chapter 16: Sense Organ & Senses - Science Mcqs for Grade 6 - (91)
- Chapter 17: Particle Model of Matter - Science Mcqs for Grade 7 - (32)
- Chapter 18: Reproduction in Plants - Science Mcqs for Grade 7 - (88)
- Chapter 19: Respiration & Food Energy - Science Mcqs for Grade 7 - (29)
- Chapter 1: Air & Atmosphere - Science Mcqs for Grade 6 - (75)
- Chapter 1: Atoms & Atom Model - Science Mcqs for Grade 7 - (185)
- Chapter 1: Ecology - Science Mcqs for Grade 8 - (65)
- Chapter 20: Simple Chemical Reactions - Science Mcqs for Grade 7 - (23)
- Chapter 21: Solar System - Science Mcqs for Grade 7 - (64)
- Chapter 22: Solutions - Science Mcqs for Grade 7 - (78)
- Chapter 23: Sound Waves - Science Mcqs for Grade 7 - (157)
- Chapter 24: Transportation in Plants - Science Mcqs for Grade 7 - (57)
- Chapter 2: Atoms Molecules & Ions - Science Mcqs for Grade 7 - (38)
- Chapter 2: Atoms Molecules Mixtures & Compounds - Science Mcqs for Grade 6 - (161)
- Chapter 2: Food & Digestion - Science Mcqs for Grade 8 - (78)
- Chapter 3: Cells, Tissues & Organs - Science Mcqs for Grade 6 - (82)
- Chapter 3: Digestive System - Science Mcqs for Grade 7 - (36)
- Chapter 3: Food Chains & Webs - Science Mcqs for Grade 8 - (19)
- Chapter 4: Changing Circuits - Science Mcqs for Grade 6 - (26)
- Chapter 4: Dispersion of Light - Science Mcqs for Grade 7 - (168)
- Chapter 4: Heating & Cooling - Science Mcqs for Grade 8 - (54)
- Chapter 5: Dissolving & Soluble - Science Mcqs for Grade 6 - (16)
- Chapter 5: Electric Circuits - Science Mcqs for Grade 7 - (36)
- Chapter 5: Light - Science Mcqs for Grade 8 - (67)
- Chapter 6: Electrical Circuits & Electric Currents - Science Mcqs for Grade 7 - (280)
- Chapter 6: Forces - Science Mcqs for Grade 6 - (56)
- Chapter 6: Magnetism - Science Mcqs for Grade 8 - (19)
- Chapter 7: Elements & Compounds - Science Mcqs for Grade 7 - (62)
- Chapter 7: Habitat & Food Chain - Science Mcqs for Grade 6 - (72)
- Chapter 7: Man Impact on Ecosystem - Science Mcqs for Grade 8 - (46)
- Chapter 8: Energy Resources - Science Mcqs for Grade 7 - (51)
- Chapter 8: How We See Things - Science Mcqs for Grade 6 - (42)
- Chapter 8: Micro Organisms & Diseases - Science Mcqs for Grade 8 - (50)
- Chapter 9: Feeding Relationships & Environment - Science Mcqs for Grade 7 - (61)
- Chapter 9: Introduction to Science - Science Mcqs for Grade 6 - (50)
- Chapter 9: Respiration & Circulation - Science Mcqs for Grade 8 - (42)