CBSE Class 9 Science Matter In Our Surroundings MCQs Set A
MCQ Questions for Class 9
Students should practice multiple choice questions with answers for all subjects in Class 9. You can refer to the subject wise links below to access free MCQ questions for grade 9. This will help you to practice and also revise all important topics given you your standard 9 NCERT textbooks
छात्रों को कक्षा 9 के सभी विषयों के उत्तरों के साथ बहुविकल्पीय प्रश्नों का अभ्यास करना चाहिए। आप कक्षा 9 के लिए मुफ्त MCQ प्रश्नों तक पहुँचने के लिए नीचे दिए गए विषयवार लिंक का उल्लेख कर सकते हैं। इससे आपको अभ्यास करने में मदद मिलेगी और साथ ही आपको अपनी मानक 9 NCERT पाठ्यपुस्तकों में दिए गए सभी महत्वपूर्ण विषयों को संशोधित करने में भी मदद मिलेगी।
CBSE Class 9 Science Matter In Our Surroundings MCQs Set A
Refer to CBSE Class 9 Science Matter In Our Surroundings MCQs Set A provided below available for download in Pdf. The MCQ Questions for Class 9 Science with answers are aligned as per the latest syllabus and exam pattern suggested by CBSE, NCERT and KVS. Chapter 1 Matter in Our Surroundings Class 9 MCQ are an important part of exams for Class 9 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 9 Science and also download more latest study material for all subjects
नीचे दिए गए CBSE कक्षा 9 विज्ञान हमारे आस-पास के पदार्थ MCQ सेट A को देखें जो पीडीएफ में डाउनलोड के लिए उपलब्ध है। कक्षा 9 विज्ञान के लिए MCQ प्रश्न उत्तर के साथ CBSE, NCERT और KVS द्वारा सुझाए गए नवीनतम पाठ्यक्रम और परीक्षा पैटर्न के अनुसार संरेखित हैं। अध्याय 1 हमारे आस-पास के पदार्थ कक्षा 9 MCQ कक्षा 9 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 9 विज्ञान के लिए अधिक अध्याय-वार MCQ देखें और सभी विषयों के लिए अधिक नवीनतम अध्ययन सामग्री भी डाउनलोड करें
MCQ for Class 9 Science Chapter 1 Matter in Our Surroundings
Class 9 Science students should refer to the following multiple-choice questions with answers for Chapter 1 Matter in Our Surroundings in Class 9.
कक्षा 9 विज्ञान के छात्रों को कक्षा 9 के अध्याय 1 हमारे आस-पास के पदार्थ के लिए निम्नलिखित बहुविकल्पीय प्रश्नों के उत्तर देखने चाहिए।
Chapter 1 Matter in Our Surroundings MCQ Questions Class 9 Science with Answers
1.Question:
When a gas jar full of air is placed upside down on a gas jar full of
bromine vapours, the red-brown vapours of bromine from the lower jar go
upward into the jar containing air. In this experiment:
(a) Air is heavier than bromine
(b) Both air and bromine have the same density
(c) Bromine is heavier than air
(d) Bromine cannot be heavier than air because it is going upwards against gravity
Answer: C
2.Question: When water at 0°C freezes to form ice at the same temperature of 0°C, then it:
(a) Absorbs some heat
(b) Releases some heat
(c) Neither absorbs nor releases heat
(d) Absorbs exactly 3.34 x 105J/kg of heat
Answer: B
3.Question: The evaporation of a liquid can best be carried out in a:
(a) Flask
(b) China dish
(c) T est tube
(d) Beaker
Answer: B
4.Question: Zig-zag movement of the solute particle in a solution is known as
(a) Linear motion
(b) Circular motion
(c) Brownian motion
(d) Curved motion.
Answer: C
5.Question: CO2 can be easily liquified and even solidified because
(a) It has weak forces of attraction
(b) It has comparatively more force of attraction than other gases
(c) It has more intermolecular space
(d) It is present in atmosphere.
Answer: B
6.Question:
A few substances are arranged in the increasing order of ‘forces of
attraction’ between their particles. Which one of the following
represents a correct arrangement?
(a) Water, air, wind
(b) Air, sugar, oil
(c) Oxygen, water, sugar
(d) Salt, juice, air
Answer: C
7.Question: Which of the following phenomena always results in the cooling effect?
(a) Condensation
(b) Evaporation
(c) Sublimation
(d) None of these
Answer: B
8.Question: The colour of vapours formed on sublimation of iodine solid is
(a) Purple (violet)
(b) Colourless
(c) Yellow
(d) Orange
Answer: A
9.Question: A gas which obeys the gas laws is known as:
(a) An ideal gas
(b) A heavier gas
(c) A lighter gas
(d) A real gas
Answer: A
10.Question: What s the term used to describe the phase change as a liquid becomes a solid?
(a) Evaporation
(b) Condensation
(c) Freezing
(d) None of the above
Answer: C
11.Question: Which of the following phenomena would increase on raising the temperature?
(a) Diffusion, evaporation, compression of gases
(b) Evaporation, compression of gases, solubility
(c) Evaporation, diffusion, expansion of gases
(d) Evaporation, solubility, diffusion, compression of gases
Answer: C
12.Question: The quantity of matter present in an object is called its:
(a) Weight
(b) Gram
(c) Mass
(d) Density
Answer: C
13.Question : As solid melts to form liquid:
(a) Inter particle distance increases
(b) Inter molecular forces of attraction decreases
(c) Compressibility increases
(d) All of the above
Answer : D
14.Question : Which of the following is not characteristic of solid:
(a) High Rigidity
(b) Regular Shape
(c) High density
(d) High compressibility
Answer : D
15.Question : The boiling point of water is:
(a) 101°C at atmospheric pressure
(b) 273K at atmospheric pressure
(c) 0°C at atmospheric pressure
(d) 0K at atmospheric pressure
Answer : A
16.Question : Which of the following has highest intermolecular forces of attraction?
(a) Water at room temperature
(b) CO2 gas
(c) Ethyl alcohol
(d) Iron metal
Answer : D
17.Question : Which of the following substances will undergo sublimation?
(a) Common salt
(b) Odonil
(c) Sugar
(d) Sand
Answer : B
18.Question : The process of evaporation causes:
(a) Cooling
(b) Heating
(c) Dryness
(d) None of the above
Answer : A
19.Question : The conversion of solid to gas directly is called:
(a) Evaporation
(b) Sublimation
(c) Distillation
(d) condensation
Answer : B
20.Question : Evaporation of a liquid can take place:
(a) At its boiling point
(b) At all temperatures
(c) At its freezing point
(d) At a fixed temperature
Answer : B
21.Question : Which of the following describes a liquid state:
(a) Definite volume and definite shape
(b) Definite volume and no specific shape
(c) definite shape but no definite volume
(d) neither definite shape nor definite volume
Answer : B
22.Question : Wet clothes are kept for drying. Which of the following does not help them in drying:
(a) Spreading it out
(b) Blowing wind over it
(c) Making the room a little warmer
(d) Cooling the room
Answer : D
23.Question : At higher altitudes the boiling points of liquids
(a) Increases
(b) Decreases
(c) Remains the same
(d) Increases then decreases
Answer : B
24.Question : During evaporation particles of a liquid change into vapours :
(a) From the surface
(b) From the bulk
(c) From the bottom
(d) From all over the liquid
Answer : A
25.Question : In which phenomenon does water change into water vapour below its boiling point:
(a) Boiling
(b) Evaporation
(c) Freezing
(d) Sublimation
Answer : B
26.Question : We get the smell of hot food in the kitchen outside the house because of:
(a) Boiling
(b) Evaporation
(c) Sublimation
(d) Diffusion
Answer : D