CBSE Class 7 Science MCQs

Refer to CBSE Class 7 Science MCQs provided below available for download in Pdf. The MCQ Questions for Class 7 Science with answers are aligned as per the latest syllabus and exam pattern suggested by CBSE, NCERT and KVS. Multiple Choice Questions for All Chapters are an important part of exams for Class 7 Science and if practiced properly can help you to improve your understanding and get higher marks. Refer to more Chapter-wise MCQs for CBSE Class 7 Science and also download more latest study material for all subjects

नीचे दिए गए CBSE कक्षा 7 विज्ञान MCQs देखें जो पीडीएफ में डाउनलोड के लिए उपलब्ध हैं। कक्षा 7 विज्ञान के लिए MCQ प्रश्न उत्तर के साथ CBSE, NCERT और KVS द्वारा सुझाए गए नवीनतम पाठ्यक्रम और परीक्षा पैटर्न के अनुसार संरेखित हैं। सभी अध्यायों के लिए बहुविकल्पीय प्रश्न कक्षा 7 विज्ञान के लिए परीक्षाओं का एक महत्वपूर्ण हिस्सा हैं और यदि ठीक से अभ्यास किया जाए तो आपको अपनी समझ को बेहतर बनाने और उच्च अंक प्राप्त करने में मदद मिल सकती है। CBSE कक्षा 7 विज्ञान के लिए अधिक अध्याय-वार MCQs देखें और सभी विषयों के लिए अधिक नवीनतम अध्ययन सामग्री भी डाउनलोड करें 

MCQ for Class 7 Science All Chapters

Class 7 Science students should refer to the following multiple-choice questions with answers for All Chapters in Class 7.

कक्षा 7 विज्ञान के छात्रों को कक्षा 7 के सभी अध्यायों के लिए निम्नलिखित बहुविकल्पीय प्रश्नों के उत्तर देखने चाहिए।

All Chapters MCQ Questions Class 7 Science with Answers

Question: Name the gas which is used by white blood cells to kill the invading bacteria.

a) Oxygen

b) Carbon dioxide

c) Nitrogen

d) Chlorine

Answer: Oxygen

 

Question: What is the percentage of oxygen in the inhaled air?

a) 21%

b) 16.4%

c) 18%

d) 20%

Answer: 21%

 

Question: What is the percentage of CO₂ in the exhaled air?

a) 23%

b) 4.4%

c) 6%

d) 0.04%

Answer: 4.4%

 

Question: Normal range of breathing rate per minute in an adult person at rest is

a) 9 - 12

b) 15 - 18

c) 21 - 24

d) 30 - 33

Answer: 15 - 18

 

Question: Muscle cramps occurs due to accumulation of

a) Lactic acid

b) Acetic acid

c) Alcohol

d) Malice acid

Answer: Lactic acid

 

Question: During exhalation the ribs

a) move down and inwards

b) move upwards

c) move outwards

d) do not move at all

Answer: move down and inwards

 

Question: In cockroach, air enters the body through

a) Lungs

b) Gills

c) Spiracles

d) Skin

Answer: Spiracles

 

Question: The air tubes in insects are called

a) Bronchus

b) Tracheae

c) Nostrils

d) blowholes

Answer: Tracheae

 

Question: Name the muscular sheet which separates the abdomen from the chest cavity.

a) Diaphram

b) Ribs

c) Spiracles

d) Tracheae

Answer: Diaphram

 

Question: Birds breathe through

a) Lungs

b) Kidney

c) Spiracles

d) Skin

Answer: Lungs