Practice focused topic-wise MCQs with answers and explanations for quick revision and exam preparation.
Difficulty select karke sirf is topic ke focused MCQs practice karein. Score, timer aur explanations student-friendly flow me milenge.
Showing 111-120 of 584 questions.
C. विलायकSolvent
Salt water में पानी अधिक मात्रा में होता है और salt को dissolve करता है। इसलिए water solvent है। / In salt water water is in larger amount and dissolves salt. Therefore water is solvent.
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D. विलेयSolute
नमक पानी में dissolved component है। इसलिए salt solute कहलाता है। / Salt is the dissolved component in water. Therefore salt is called solute.
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Solution is what type of mixture?
A. समांगी मिश्रणHomogeneous mixture
Solution में composition पूरी मात्रा में uniform होती है। इसलिए यह homogeneous mixture है। / In a solution composition is uniform throughout. Therefore it is a homogeneous mixture.
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What is a general characteristic of a suspension?
B. बड़े कण समय के साथ settle हो सकते हैंLarge particles can settle with time
Suspension में कण बड़े होते हैं और settle हो सकते हैं। Muddy water इसका example है। / In a suspension particles are large and can settle. Muddy water is an example.
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Muddy water is an example of what?
C. निलंबनSuspension
Muddy water में मिट्टी के particles suspended रहते हैं। समय के साथ वे settle हो सकते हैं। / In muddy water soil particles remain suspended. They can settle with time.
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In a colloid how is the size of dispersed particles compared with solution and suspension?
D. solution से बड़ा और suspension से छोटाLarger than solution and smaller than suspension
Colloid particles intermediate size के होते हैं। इसलिए वे सामान्यतः जल्दी settle नहीं करते। / Colloid particles are of intermediate size. Therefore they generally do not settle quickly.
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Milk is considered an example of which type of mixture?
A. कोलाइडColloid
दूध एक colloidal mixture है। इसमें fat droplets dispersed रहते हैं। / Milk is a colloidal mixture. Fat droplets remain dispersed in it.
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Smoke is what type of mixture?
B. कोलाइडColloid
Smoke में solid particles gas में dispersed होते हैं। इसलिए यह colloidal system का example है। / In smoke solid particles are dispersed in gas. Therefore it is an example of colloidal system.
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In which mixture can Tyndall effect be observed?
C. कोलाइडColloid
Colloids light को scatter कर सकते हैं। यही Tyndall effect है। / Colloids can scatter light. This is Tyndall effect.
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Why is Tyndall effect generally not seen in true solution?
D. क्योंकि particles बहुत छोटे होते हैंBecause particles are very small
True solution के particles बहुत छोटे होते हैं और light scatter नहीं करते। इसलिए Tyndall effect नहीं दिखता। / Particles of a true solution are very small and do not scatter light. Therefore Tyndall effect is not seen.
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