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Conversion of toulene to t.n.t .

Posted by Rahul_ Ry(ʘ‿ʘ) 6 years, 8 months ago

CBSE > Class 12 > Chemistry

3 answers

Rahul_ Ry(ʘ‿ʘ) 6 years, 8 months ago

?% correct answer..... So you won my gratitude..... Thank you....✌️

1Thank You

? Natasha Yadav? 6 years, 8 months ago

If you require detailed explanation , please tell me.

3Thank You

? Natasha Yadav? 6 years, 8 months ago

Toluene when heated with HNO3 and H2SO4 give tnt. When heated at temperature 30°C -40°C give mononitrotoluene. At 60°C forms 2,4-dinitrotoluene. At 90°C forms 2,4,6-trinitrotoluene.( TNT) . In each step presence of HNO3 and H2SO4 is required.

1Thank You

ANSWER

calculate the current strength in ampere required to liberated oxygen gas at the rate of 1cm²/sec at stp

Posted by Harshat Asangi 6 years, 8 months ago

CBSE > Class 12 > Chemistry

0 answers

ANSWER

Who coined acid rain?

Posted by Ananya Rai 6 years, 8 months ago

CBSE > Class 12 > Biology

1 answers

Sia ? 6 years, 8 months ago

Robert Angus Smith

0Thank You

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Principle of ellingam daigram

Posted by Kanak Sharma 6 years, 8 months ago

CBSE > Class 12 > Chemistry

1 answers

Shivam Chaurasia 6 years, 8 months ago

Which metel oxides can be reduced at certain temperature at which gibbs energy bevome very negative for spontaneity.

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What is the principle of ellingam daigram

Posted by Kanak Sharma 6 years, 8 months ago

CBSE > Class 12 > Chemistry

1 answers

Sia ? 6 years, 8 months ago

An Ellingham diagram is a graph showing the temperature dependence of the stability for compounds. This analysis is usually used to evaluate the ease of reduction of metal oxides and sulfides.

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Rohit and Mohit have some money with them. Mohit gave one-seventh of his money to his friend. He still had Rs 1000 less than twice the money which Rohit had in the beginning. If Rohit had Rs 2000 with him in the beginning, then find the money which Mohit had with him in the beginning.

Posted by Anamika Rajput 6 years, 8 months ago

CBSE > Class 12 > Mathematics

1 answers

Anjali Singh 6 years, 7 months ago

Tera koi bf h

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Coulomb's law for electrostatic force between two point charges and Newton's law for gravitational force between two stationary point masses, both have inverse- square dependence on the distance between charges/masses. a) Compare the strength of these force by determining the ratio of their magnitudes. 1. For an electron and a proton 2. For two protons b) Estimate the acceleration of electron and proton due to the electrical force of their mutual attraction, when they are 1 × 10 ^-10 apart?

Posted by Prerna Dey 6 years, 8 months ago

CBSE > Class 12 > Physics

0 answers

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Explain why high tech industry in many country are being attracted to the peripheral areas of major metropolitan centers

Posted by Gengam Ete 6 years, 8 months ago

CBSE > Class 12 > Geography

1 answers

Sia ? 6 years, 8 months ago

Following are the reasons to attract the high tech industries or technological park to the peripherical areas of major metropolitan cities

Light industries, which do not use raw materials but component parts.
More prospective for future development because extance land available, in peripheral area.
Coast of land is generally limited in the peripheral area.
Transport facilites are accesable through link and ring road to the peripheral area.
Pollution free environment are additional benefits in peripheral areas
Cheap and abudant labour supply from the nobouring residential areas.

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Why Os show +8 oxodation state?

Posted by Mohit Hurmade 6 years, 8 months ago

CBSE > Class 12 > Chemistry

0 answers

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Define intramurals and extramurals

Posted by Akash Sharma Roshan 6 years, 8 months ago

CBSE > Class 12 > Physical Education

1 answers

Nandini Shankhdhar 6 years, 7 months ago

Intramural competitions that took place within a boundary for instance interclass competition while extramurals are the ones that took place outside the boundary for instance interschool competition

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Integration of (cotx)raised to 6

Posted by Saloni Singh 6 years, 8 months ago

CBSE > Class 12 > Mathematics

0 answers

ANSWER

Differences between dominance and co-dominance character

Posted by Surbhi Kumari 6 years, 8 months ago

CBSE > Class 12 > Biology

1 answers

Divya Deep Srivastava 6 years, 8 months ago

Dominance is the complete expression of only one allele but in co-dominance all the alleles of a character express each of them equally,like ABO blood grouping.

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Two charges +10uc and -10uc are fixed at a separation of 10cm .finding the value of charge third which is placed at perpendicular to the 10cm and height from the perpendicular of 10cm is 12cm.b/w two given charges

Posted by Purvi Sharma 6 years, 8 months ago

CBSE > Class 12 > Physics

1 answers

Divya Deep Srivastava 6 years, 8 months ago

Your question is not very clear.First,you shoud state the question very clearly and its given data. But,as i understood this question from my understslanding its correct answer shoud be 16uc

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P-nitrophenol, ethanol, phenol(acidic characters) . Arrange the following compounds in increasing order of the property indicated

Posted by Kamlesh Kumar 6 years, 8 months ago

CBSE > Class 12 > Chemistry

4 answers

Abhishek Kumar Yadav 6 years, 7 months ago

P-nitro phenol >phenol >ethanol

0Thank You

Kamlesh Kumar 6 years, 8 months ago

Very nice paper

0Thank You

? Natasha Yadav? 6 years, 8 months ago

All the best for today's test. Hope you will do good. Please reply me afterwards that how was your test.

1Thank You

Řøhăň Řąjpůť ✌️✊ 6 years, 8 months ago

Electron withdrawing group such as - No2 increases the acidic character while electron releasing group such as - CH3 decreases the acidic character. moreover the phenoxide ion produced by loss of Proton by phenol is stabilised by resonance due to delocalisation of negative charge on benzene ring. Therefore increasing oder of acidic character is ethanol >phenol >p-nitrophenol

3Thank You

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Hydronotation of propene and then oxidation to propanol

Posted by Kamlesh Kumar 6 years, 8 months ago

CBSE > Class 12 > Chemistry

1 answers

Kamlesh Kumar 6 years, 8 months ago

Also the equation with all step and reagents

1Thank You

ANSWER

Raj and mohan are partners in a firm sharing profit and loss in the ratio of 3:2. Thampi is admitted in the partnership. Raj sacrifices 1/3rd of his share and Mohan 1/4th of his share in favour of Thampi. Determining new ratio of partners and sacrificing ratio.

Posted by Sikha Raju 6 years, 8 months ago

CBSE > Class 12 > Accountancy

1 answers

Saurabh Singh 6 years, 7 months ago

Sacrifice of Raj in favour of thampi =3/5*1/3 =1/5 Sacrifice of Mohan in favour of thampi =2/5*1/4 =1/10 Raj's new profit sharing ratio =3/5 - 1/5=2/5 or 4/10 Mohan's new profit sharing ratio = 2/5 - 1/10 = 3/10 Thampi's share = 1/5 + 1/4 = 9/20 New profit sharin ratio of Raj, Mohan and Thampi = 4/10, 3/10, 9/20 or 8:6:9

0Thank You

ANSWER

Who invented the DNA

Posted by Ramanayya Guruvu 6 years, 8 months ago

CBSE > Class 12 > Biology

2 answers

Sia ? 6 years, 8 months ago

Francis Crick

1Thank You

Gursharn Kaur 6 years, 8 months ago

Hershey chase

0Thank You

ANSWER

Paper pattern changed class 12 chemistry????

Posted by Sanyam Dubey 6 years, 8 months ago

CBSE > Class 12 > Chemistry

2 answers

Řøhăň Řąjpůť ✌️✊ 6 years, 8 months ago

u can easily download it from Google.

0Thank You

Priya Dharshini ? 6 years, 8 months ago

20 questions are objectives and there are many internal choices between all marks questions... then remaining is same only..

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3-chloro-5-fluoro-3,5-dimethylheptane structure

Posted by Satyam Singh 6 years, 8 months ago

CBSE > Class 12 > Chemistry

1 answers

Ɽøⱨł₮ ₲Ʉ₱₮₳ 6 years, 8 months ago

CH3-CH2-C (Cl ^CH3 )-CH2-C(F CH3) - CH2-CH3

1Thank You

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State raoult 's law for solution of volatile liquid. Taking suitable examples explain the meaning of positive and negative deviation from raoults law and draw graph

Posted by Kamlesh Kumar 6 years, 8 months ago

CBSE > Class 12 > Chemistry

0 answers

ANSWER

Are additional questions in textbook are going to be in exam or not ?

Posted by Manav Bansal 6 years, 8 months ago

CBSE > Class 12 > Physics

4 answers

? Natasha Yadav? 6 years, 8 months ago

We can't predict anything, but why should you leave anything that is given in NCERT.

1Thank You

Shivam Chaurasia 6 years, 8 months ago

In 2019 a question of additional has been asked from electromagnetic onduction , last 2 ques. Are very important.

1Thank You

Řøhăň Řąjpůť ✌️✊ 6 years, 8 months ago

yes additional questions are imp. but not all only few questions are from examination point of u.. u should refer last year paper for rough idea regarding this questions.

3Thank You

Priya Dharshini ? 6 years, 8 months ago

It will come in exam... u cant skip anything.. dont risk..

2Thank You

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Why alternating current is used for measuring resistance of an electrolytic solition..??

Posted by Priya Dharshini ? 6 years, 8 months ago

CBSE > Class 12 > Chemistry

2 answers

Priya Dharshini ? 6 years, 8 months ago

Ohh okay got it... thank you?

1Thank You

Řøhăň Řąjpůť ✌️✊ 6 years, 8 months ago

it is done becoz in case of achievement there is no polarisation due to discontinuous flow of current .

3Thank You

ANSWER

Print number of seconds in year

Posted by Leelesh Kumar 6 years, 8 months ago

CBSE > Class 12 > Computer Science

0 answers

ANSWER

Calculate the standard cell potentials of galvanic cell in which the following rxns take place::1.2Cr +3Cd2+------2Cr3+ + 3Cd 2..Fe2+ + Ag+ + ------ Fe3+ + Ag...?

Posted by Srishti Choudhary ✍⏳ 6 years, 8 months ago

CBSE > Class 12 > Chemistry

2 answers

Srishti Choudhary ✍⏳ 6 years, 8 months ago

No..its completed...ncert ques h ye

0Thank You

Nishu Sahu 6 years, 8 months ago

Hy Srishti , is que incomplete

1Thank You

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Signicance of stem cells

Posted by Vipul Chodankar 6 years, 8 months ago

CBSE > Class 12 > Biology

3 answers

Gursharn Kaur 6 years, 7 months ago

Stem cells helps in the formation of a new cells and also provide an arrangement to new growing cells

0Thank You

Aastha Saxena 6 years, 8 months ago

They have the potency to give rise to all the tissues and organs in foetus/embryo

0Thank You

Vipul Chodankar 6 years, 8 months ago

Have Ability to regenerate new cells , thus useful for treating some disorders and tissue or organ ransplants

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Note making of chapter journey to the end of Earth

Posted by Anjali Rathore 6 years, 8 months ago

CBSE > Class 12 > English Core

2 answers

Sia ? 6 years, 8 months ago

You can check the notes here : https://mycbseguide.com/cbse-revision-notes.html

26Thank You

Trupti Rani Choudhury 2 years, 4 months ago

It takes nine time zones, six checkpoints, three water bodies, and the same number of ecospheres for a south Indian man to travel to Antarctica from Madras. Tishani Doshi travelled to the South Pole with an expedition group called 'Students on Ice,' which gives young minds the opportunity to become more aware of the realistic version of global climate change. According to the organization's founder, we are the young versions of future policymakers who can change the situation. Antarctica is one of the world's coldest, driest, and windiest continents. It is completely white as far as the eyes can see, and the uninterrupted blue horizon provides immense relief. It's hard to believe that India and Antarctica were once part of the same supercontinent, Gondwana, before being separated into countries and giving rise to the world we know today. Until then, Antarctica had a warmer climate. Despite human civilisation all over the world, it still exists in its natural state. As a sun-worshipping south Indian, it was unthinkable for the author to visit the place that contains 90% of the world's ice, a place so quiet that it is only interrupted by snow avalanches. It is home to many evidences that can provide us with a glimpse of the past while also assisting us in forecasting the future. The place serves as a wake-up call to the impending threat that global warming is, in fact, a reality. Who knows if Antarctica will ever be warm again, and if it does, will we be there to witness it?

1Thank You

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Solution of passage about the osteoporosis disease

Posted by Seema Kushwah 6 years, 8 months ago

CBSE > Class 12 > English Core