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Top 500 current Affairs in 2018 Part 7
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Top 500 current Affairs in 2018 Part 7

Md Mustafizur Rahaman
Chemistry . Blogger (Pscguide.in) . Selected For WBCS 2017 Interview. Currently working as journalist in an esteemed daily.Taught math vari

U
Unacademy user
sir ,pls batiye ki 77 kse ayga ans , mera to nhi aa rha hai
kahan problem aa rhi h? mera aa gya.. i can help
Rajni pal
a year ago
mera bhi ans. 77 nhi aa rha plz btaye kaise aayega
Shruti Sandhya
a year ago
pls koi to solve kro ish que ko
Shruti Sandhya
a year ago
pls koi to solve kro ish que ko
Shruti Sandhya
a year ago
pls koi to solve kro ish que ko
Vishakha Singh
a year ago
the reaction will be c + 2cl2 gives ccl4 we have given 144g of carbon and 71g of cl convert the given data into moles 144/12 gives 12 moles of carbon and 71/71 giving 1 mole of cl2 as we know from the reaction 1 mole carbon reacts with 2 moles of cl2 to give 1 mole of ccl4(carbon tetrachloride) divide the calculated moles by the stoichiometric coefficients of carbon and chlorine gas... as we will see the ratio comes least for chlorine so its the limiting reagent... as 2 moles of cl2 produces 1 mole or 154g ccl4 1 moles of cl2 will produce 154/2 =77g
Shruti Sandhya
a year ago
thanku soo much Vishaka.
Shruti Sandhya
a year ago
thanku soo much Vishaka.
Shruti Sandhya
a year ago
Mai sirf single chlorine ka mass (35.5) le rhi thi isliye nhi as rha tha.
Shruti Sandhya
a year ago
Mai sirf single chlorine ka mass (35.5) le rhi thi isliye nhi as rha tha.
Shruti Sandhya
a year ago
Mai sirf single chlorine ka mass (35.5) le rhi thi isliye nhi as rha tha.
Shruti Sandhya
a year ago
Mai sirf single chlorine ka mass (35.5) le rhi thi isliye nhi as rha tha.
Shruti Sandhya
a year ago
Mole percent of ethylene _ 50 per kse ayga.
Shruti Sandhya
a year ago
Mole percent of ethylene _ 50 per kse ayga.
Shruti Sandhya
a year ago
multiple proportion m carbon & oxygen que me kse ratio equal kre koi batao mere s nhi hua.
Rajni pal
a year ago
thanks
Vishakha Singh
a year ago
mixture bs two compound ka tha isliye
Vishakha Singh
a year ago
mole % ethylene ka pucha h mixture m kis ratio m h in short lets get confirmed by sir first i also wanted to know weather its correct or not😅😅😅
Ss
Sumit singh
a year ago
yar sir ka to ek bhi reply ni aa rha sirf juth Bolte hi ki wo coment seaction me problem solve hoga to help krenge
Shruti Sandhya
a year ago
ekdm sahi Sumit , sir haven't any reply.
Ss
Sumit singh
a year ago
yess
Mujhe lgta hai aisa ni hai .. sir busy rehte honge.. issliye sayad rply ni de pate honge...
App log ko agr koi doubt hai toh.. sir ki mail id pe mail kr do... made ejee chemistry channel pe mil jayegi...
Shruti Sandhya
a year ago
itna time hamre pass bhi nahi hai ,shivi mail krne ko
Ss
Sumit singh
a year ago
shivi sir busy rhte hi to faltu ka bharosa ku dila dete hi ap btaoo
unke pass itne sare responsibilities rehte hai..... wo students ke liye itna sb kr rhe hai unta hi bht h @Sumit...doubts ki problem sbko hoti hain... aur itne sare students ko individually attend krna is really not possible... hope u understand..
aur bht sare aur tarike hai jise hum apne doubts clear kr skte hai.... :)
Ayesha Gaur
a year ago
vishakha C and Cl ko simply rkne solve krna hota h kya ? meine net pe search kia tha CH4 ke form m Carbon combine krta h ..kya pure chemical eq. pta hone zaruri nhe h ?
Neha SINGH
a year ago
thnq so much vishakha
Abhishek sharma
a year ago
The answer is 77 let me tell you how it comes.. so first we write the Eqn. C + Cl2 -----> CCl4 on balancin we get , C + 2Cl2 -------> CCl4 so we know that, Mass of C -- 12 g Mass of Cl2 ---35.45 now, Moles of C = 144/12 =12g Moles of Cl2 = 71/35.5 = 2.033 Now deviding the moles by Stichiomentry Coefficient we get For C = 12/1= 12 For Cl2 =2.003/2=1.0015 So from these we know that Cl2 is the Limiting reagent.. now. 142g of Cl2 gives 154 g of CCl4 so 71g of Cl2 gives 154×71/142 g =779
Abhishek sharma
a year ago
sorry 77 gram not 779
Abhishek sharma
a year ago
it is so easy
Shivam rai
a year ago
thanks abhishek
Shivam rai
a year ago
thanks abhishek
Shivam rai
a year ago
thanks abhishek
Shivam rai
a year ago
thanks abhishek
Rajnandini verma
7 months ago
thnx vishakha
Neha kumari
7 months ago
sir can u plz upload lecture and important question for significant figure...
  1. MD MUSTAFIZUR RAHAMAN Polity Economy . Gk Current Affairs - Prfl link https:/unacademy.com/user/LeoMESSIIO


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  3. Top 500 Current Affairs in 2018 Part 7 MD MUSTAFIZUR RAHAMAN


  4. Q75 . Which country to host the 8th edition of Theatre Olympics 2018? [A] Russia [B1 Brazil IC] Indic D] China


  5. Ans C India will host the 8th edition of Theatre Olympics in New Delhi from February 17 with theme "Flag of friendship", The event will inaugurated by Vice President M Venkaiah Naidu at Red Fort. It is being organised by National School of Drama, under the Ministry of Culture.


  6. Q76 Which of the following is the India's first online radio station? [A] Radio Sansar [B] Radio Umang C] Radio Aadhaar [D] Radio Teacap


  7. Ans B India's first online radio station Radio Umang" has launched on 2018 With 24 hours programming, it has found listeners in Hindi speaking regions of India and in over 60 countries worldwide.


  8. Q77 . Which state has won the Senior Women's National Football Championship 2018? [A] Manipur [B] Madhya Pradesh [C] Punjab [D] Tamil Nadu


  9. Ans D Tamil Nadu has lifted their maiden title in the 23rd edition of the Senior Women's National Football Championship 2018 by defeating Manipur in the final by 2-1


  10. Q78 Who has been sworn-in as the new Prime Minister of Nepal? A] Sushil Koiralo [B] Sher Bahadur Deuba C] KP Sharma Oli [D] Khil Raj Regmi


  11. And C Khadga Prasad Sharma Oli, the chairperson of Communist Party of Nepal (Unified Marxist-Leninist), has been sworn-in as the 41st Prime Minister of Nepal,


  12. Q79 Which country to host the World Sustainable Development Summit - 2018? [A] South Africa [B] Nepal [C] Brazil [D] India


  13. Q80 The world's first autonomous pods has launched in which city? [A] Berlin [B1 Dubai [C] Paris [D] New York


  14. Ans C India's Umang App has won the Best M-Government Service award in the Accessible Government category while Aadhaar won the best emerging technology award at the recently concluded 6th edition of the World Government Summit 2018 in Dubai, Umang App" provides users a unified platform that combines government departments and services, facilitating transactions for citizens.


  15. Ans D The world's tallest hotel 'Gevora' has opened in Dubai, United Arab Emirates (UAE) Gevora Hotel stands 356 metres, or nearly a quarter of a mile,


  16. G83 Which country to host 2018 Shanghai Cooperation Organization (SCO) Summit? [A] China B] India C] Kazakhstan [D] Tajikistan


  17. Ans A The 18th Shanghai Cooperation Organization (SCO-2018) will be hosted by China in the city of Qingdao in June, 2 the17th SCO summit 2017, which was held in Astana, Kazakhstan The SCO is consists of China, Russia, Kazakhstan, Kyrgyzstan, Tajikistan, Uzbekistan, India and Pakistan


  18. Q84 Who has been sworn-in as new President of South Africa? [A] Cyril Ramaphosa [B] Kgalema Motlanthe [C] Cyilmso Motlanthe D] David Mabuza


  19. Ans A Vikas Sathaye, a Pune-born person has been honoured with the Scientific and Engineering Academy Award at the Oscars Scientific and Technical Awards 2018


  20. Ans C The prestigious World Congress on Information Technology has started in Hyderabad Over 2000 delegates including heads of IT majors, visionaries, Government leaders and academia from 30 countries will take part in the Congress being held for the first time in India.


  21. Ans B India's first Artificial Intelligence (AI) centre will be set up by the Maharashtra Government in Mumbai.


  22. MD MUSTAFIZUR RAHAMAN Follow me on UNACADEMY