10th Science, Activity 2.7

[@XploreLearningCentre]

We are starting with online classes for 10th standards on KZbin live. From 31st may, everyday 2 hours Timing 6 to 8 in the evening Science and Maths Also include live demonstrations, practice tests and daubt clearing sessions. Clearing all your basics needed to understand particular topic. Subscribe our channel and never miss an update. Share with all your friends and help them get benefited.

[@bijayineepanda7261]

Ok sir

[@shalinipunjari6913]

Really nice and crazy explanation could understand all activities well

[@IIT24Aspirant]

I just love the outro 5:33

[@bsrthebest7745]

Well done sir keep going...!!!😃🙏

[@kusumam438]

Good explanation

[@kumkumslab5811]

Sir thank you so much for your videos

[@AbhaySaini-mq2qm]

Too good 👍

[@saurav7614]

nice explanation

[@ksrajput6283]

Sir your video is always helpful

[@SS-xw2fx]

Sir thankyou so much for the videos... it really helps but can you please speak louder or increase the volume of the video when you edit it because your voice comes so low that I actually have to bring my ears close to the speakers so that I could hear atleast something and if I use headphones and increase the volume, your voice is still not clear... it kind of buzzes out.. so a gentle request to please increase the volume.. it would be very helpful... thankyou so much☺

[@riddhitripathi7910]

Yaa sir please

[@gupta_jiyu27]

thank you sir waiting for next vdeo

[@manishabhushan9667]

Sir ur great thx u for this lecture 🙌🏻🙌🏻❤️

[@Successlife301]

Op sir ji

[@aarya8958]

Thanks a lot sir....nice explanation

[@snehasinghrajput18806]

👍

[@under16fitness56]

Best channel 💖

[@keshav_khajuria3578]

Bai patla kese hote he

[@under16fitness56]

@@keshav_khajuria3578 I think Running is best 🚩 by the way iam armwrrestler so k don't know much about that ❤️

[@mamathamach1428]

Thank you so much sir . Nice explanation

[@Bhumi_rai]

sir first i put your video on like than see it coz they are really amazing

[@experiencebystudent1357]

Thanks sir 💕

[@kevinkrenil9375]

Prashant Sir thank u....

[@keshavgupta9287]

Sir i have seen you clear most of the doubts of solutions so please clear my doubts as well sir, 1) How to identify Salt, mtlb keese solution mai agar salt aa rha hai toh usse kaise identify krey kee voh salt hee hain 2) sir is it compulsory, is OH- ion in any basic solution and O- in any acid solution is always there, agar Koi formula hain jesme oh- ya O nhi aa rha toh voh na acid hai na base hai balki neutral hai? For example NACL?

[@keshavgupta9287]

Students*

[@XploreLearningCentre]

@@keshavgupta9287 to very initial level we consider substance which gives H+ in solution is acid Substance which gives OH- as base And substances prepared by reaction of acids and bases OR substnace which contains one metal and a nonmetal is called salts. But trust me there are still many more ways by which acids and basis are defined. Mainly in terms of electron transfer etc. U need knowledge of chemical bonding to understand it to that level. Its will covered in college syllabus

[@keshavgupta9287]

Thank You so much sir for replying

[@keshavgupta9287]

Sir I am in 10th class, and the problem is coming is I am not able to identify which is base or which is acid or konsa metal hai and konsa non metal sir please ye aur bta dijiye

[@keshavgupta9287]

And not able to distinguish between salts as well

[@aryan3464]

Thanks sir.👍

[@rushdaafreen1945]

Sir is copper chloride a precipitate?

[@XploreLearningCentre]

@@rushdaafreen1945 no It's water soluble

[@rushdaafreen1945]

@@XploreLearningCentre Thnxx

[@n-k21gaming59]

Thank you sir..🙏

[@meenudahiya7615]

Thank you sir

[@rajeshwari152]

Sir please speak loudly..not able to Hear ur voice properly

[@Timmy4700]

Sir, please do change your microphone. Your videos are really helpful♥️

[@studenttime1186]

thank you so much

[@mythverse4195]

sir aapki voice bhot dhere aati hh thora loud bola kijiye plzz

[@essakr2016]

sir ur volume is so low plz make sure to check next time.

[@aasthamelanda2008]

Sir, it's my request please clearly speak kiya karo sir, sometimes your voice is not clear..I hope sir you can understand feelings of students

[@sakshipriya2978]

How can copper displaces hydrogen? Copper is less reactive than hydrogen

[@XploreLearningCentre]

Its double displacement.. there's no is superior

[@mrbrassballs7704]

there are exchange of ions taking place, doesnt matter which is high reactive

[@Nazia87_]

Thanks sir.

[@manishchauhan3515]

Hii

[@stylishproduction4264]

Jai shree ram

[@Sunny-lc4vk]

@@stylishproduction4264 mullo ki jali 😂😂

[@imperialhawkmotivation1952]

Sir please upload chapter. -3 Activities before science board

[@abdul_0aa]

How copper oxide reacts with HCL copper is less reactive than Hydrogen😫

[@AnjiAnji-mh2qr]

I know it's late 😅 Copper didn't displace hydrogen Copper oxide is basic in nature ,it just reacted with acid and formed salt It's neutralization reaction

[@believer....7172]

Tq❣

[@manjulask.6735]

Please speak loud sir

[@kiran262]

Please speak louder voice is not clear

[@mamtakumawat7661]

sir all salts contain chlorine hcl also contains chlorine then why it is not considered as a salt

[@XploreLearningCentre]

Who said all salts contain chlorine

[@mamtakumawat7661]

@@XploreLearningCentre WHAT ALL SALTS CONTAIN AS COMMON

[@XploreLearningCentre]

@@mamtakumawat7661 salts simply contains atlest one metal with a nonmetal And they neither give H+ nor OH- when added in water

[@nitinwadekar5495]

@@XploreLearningCentre thanks!

[@sukhdevsoni8222]

Sir how cu can replace H......... H is high reactive then cu

[@XploreLearningCentre]

Its not displacement There's double displacement reaction

[@AnjiAnji-mh2qr]

​@@XploreLearningCentre it's neutralization reaction know sir

[@Rohit-j8l4g]

In background marathi song was played😂😂😂

[@poonamjayswal9026]

it's blue greenish

[@Harsh_explainer]

No it's pale green

[@lijajoy9590]

Thank you sir 🙏 ❤️

[@experiencebystudent1357]

thanks sir 💕