Atoms and Molecules - Daily Practice Questions (Part 2) | Class 9 Chemistry Chapter 3

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Pagal h kya tuh???

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Previous Video : Symbols Used to Represent Atoms of Different Elements - Class 9th chemistry kzbin.info/www/bejne/jYTIeXh5pMihfJo Next Video : Atomic Mass - Class 9th chemistry kzbin.info/www/bejne/o6GphKCvhpKrhqs

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[@patwahimansh..]

Mam but in 2ed question you have said that atomic weight of potassium and calcium is same but in my periodic table chart are different. potassium=39.098, Calcium=40.08

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Superb ma'am

[@nanditajain4425]

Mam, in the 1st question, you told that all the statements are correct. But according to the limitations of dalton's atomic theory, 1st and 2nd statements should be incorrect. So the correct answer should be option 3, right?

[@tahiafzal3468]

The question is about postulates of daltons atomic theory not for limitations

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Great mam

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Thanks for this DPQ 🤟🏻

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[@nayikasikha6885]

Mam atoms ke masses proton or neutron hi kiu banate he ???? Electrons kiu nahi?? Or atomic number sirf protons hi kiu banate he ???? Plz mam reply jarur karna 🙏🙏🙏

[@vinodsinghbaghel1679]

Yes !! U r right

[@priyadhole7518]

Because atoms alomst ka mass uske nucleus me hi hota hai.. hope u understand it

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Yes mam please reply this comment

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[@bhawanikumari5981]

Thanks mam

[@___-bh6oo]

Ma'am Argon ka atomic mass 40 hota hai or calcium ka 40

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[@ABHAYKUMAR-wn4fi]

miss the atomic mass of argon and calcium are same instead of potassium and calcium

[@sukhmanjeetsingh9201]

Nope. These 3 elements argon , calcium , potassium have same mass .

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Hy vee help

[@arpitrathore9826]

Mam gase atom ki alug dunyia hoti he bese hi matter ki bhi alug dunyia hoti he

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Thank you ma'am 😊😉😘😆🙂

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Same to you for ma'am 😊😁😘😊😁😁😁😘😁😊😉😘😆🙂

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When why you have not uploaded the DPQ in chapter Structure of atom?????? Ma'am really your's DPQ are really very helpful please maki it of Structure of atom chapter's also

[@parmeshwarchaware4763]

Lekin mam use Dalton ne to sahi bola na ki chemical properties different hai Point 4 me to likha hai Bass uska ee galat hai ki differnt masses hai jo aapane ex se hame bataya ki vo galat hai diffent masses me Doffent properties me to vo sahi hai

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Mam mujhe aapka atomic mass wala session bahut achha laga thanks mam

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Supper teaching 🙂💯👍

[@rameshchandrabash9478]

Mam 1 nanometer is 10 to the power minus 9th part of metre

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Hi there! You are absolutely right. 1 nanometer is equal to 10 to the power minus 9th part of a metre. We are glad that you are learning through our educational videos. Keep it up!

[@224butwhy9]

B but one mistake in it distance between nucleus and outermost shell of that atom

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bhai jab delton's theory galat hai tho fir padhate kyu ho???????😑😑😑

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[@sukhmanjeetsingh9201]

Galtiyo se sikho

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Concept ko dekho

[@sukhmanjeetsingh9201]

Sabhi postulate thodi na galat h . thode hi galat h unse sikho

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Lovely nice explanation ❤️❤️🎉

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[@youdontknowme4907]

Ma'am but aapne to kaha tha ki atoms sbse chote indivisible particles nhi hote h and same element k mass vary b krte h phir ques. 1 me all of these kaise ho jyega 🤔 I m in confusion plz reply 🙏

[@aliizhan8286]

Answer of ques 1 is correct as according to Dallton atoms are indivisible .

[@youdontknowme4907]

@@aliizhan8286 ok thank u 😊

[@shivvihar1kanjhawala157]

Bcoz unhone according to daltons theory bola tha

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[@mainachauhan9373]

Limitations and drawbacks of dalton's theory

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@@mainachauhan9373 thnks

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D

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∑

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8 b

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1 d

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2 d

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?

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[@224butwhy9]

B

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9 d

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10 c

[@224butwhy9]

B

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D

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