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Give some important questions for board exam 2021

Posted by Pankaj Tiwari 5 years, 2 months ago

CBSE > Class 12 > Chemistry

1 answers

Student Of The Year 5 years, 2 months ago

All NCERT Questions. According to reduced sallybus.

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Sin²x + cos²x

Posted by Debasish Chetry 5 years, 2 months ago

CBSE > Class 12 > Mathematics

3 answers

Sahil Kumar 5 years, 2 months ago

Sin90°+Cos90°

Swayam Pattanaik 5 years, 2 months ago

4-3

Rishita Maheshwari 5 years, 2 months ago

Sin²x + cos²x = 1

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How tolene obtained from phenol

Posted by Pooja Mishra 5 years, 2 months ago

CBSE > Class 12 > Chemistry

3 answers

Sharli Irissssss 5 years, 2 months ago

C6H5OH +Zn gives C6H6 C6H6+CH3Cl in presence of AlCl3 gives toulene

Mr. Singh 5 years, 2 months ago

Phenol is treated with dust of Zn to get benzene as product. Upon friedel-craft alkylation of benzene toluene is obtained.

Navneet Kaur 5 years, 2 months ago

When phenol is heated with Zn dust to form benzene which upon treatment with Ch3Cl in presence of aluminium chloride gives toulene

ANSWER

Which alcohol is used in cosmetic and why?

Posted by Mr. Singh 5 years, 2 months ago

CBSE > Class 12 > Chemistry

2 answers

Mr. Singh 5 years, 2 months ago

Glycerol hoga mujhe Ans mil gaya

Debasish Chetry 5 years, 2 months ago

Imperial blue?

7Thank You

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Do simple ethers have dipole moments?

Posted by Mr. Singh 5 years, 2 months ago

CBSE > Class 12 > Chemistry

0 answers

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Bst project on principle of management plz??

Posted by Cute Girl 5 years, 2 months ago

CBSE > Class 12 > Business Studies

1 answers

Sachin Kori 5 years, 2 months ago

https://hscprojects.com › principles-... Principles Of Management Project On McDonald's - HSC Projects

5Thank You

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P/v ratio calculate. Profit at the sales of ₹ 40000. New break even point if selling price is reduced by 20%. Sales in rupees to earn a profit of ₹8000 after reducing selling price by 20%. Fixed cost ₹8000 B.E.P. In rupees ₹20000

Posted by Nikita Choudhary 5 years, 2 months ago

CBSE > Class 12 > Accountancy

0 answers

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Report writing on literacy week

Posted by Aditi Saxena 5 years, 2 months ago

CBSE > Class 12 > English Core

1 answers

Kushagra Mittal Mittal 5 years, 2 months ago

? contact me

ANSWER

find dy/dx if y=log(x^x +(cosecx)^2)

Posted by Mansi Jain 5 years, 2 months ago

CBSE > Class 12 > Mathematics

1 answers

Arjun Singh 5 years, 2 months ago

dy/dx = x^x - 2cosec^(2)x ×cotx/ x^x+ cosec^(2)x

ANSWER

Describe briefly what has been found in burial at the harappens? 3mark

Posted by Silky Wahengbam 5 years, 2 months ago

CBSE > Class 12 > History

1 answers

Jyoti Singh 5 years, 2 months ago

Burials have been significant evidence to establish social differences within the Harappan society. The dead were generally laid in pits. There were differences in the way the burial pit was made. In some cases, the hallowed out spaces were lined with bricks. Pottery, ornaments, jewellery of both men and women have been found in some burials indicating that there could be life after death. The dead were also found buried with copper mirrors in some cases.

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Any u tube channel for "molecular basis of inheritance " ???

Posted by Tanya ?? 5 years, 2 months ago

CBSE > Class 12 > Biology

4 answers

Mr. Singh 5 years, 2 months ago

As your wish

Mr. Singh 5 years, 2 months ago

Ok.... No mention

Mr. Singh 5 years, 2 months ago

Aur wrong side see mat lena okokokok

Mr. Singh 5 years, 2 months ago

You tube main Jane kii koi jarurat nhii,,, If you don't mind too Tum meri notes read kar lo samaj aa jayaga,,,,,,,,,, 98%

5Thank You

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Why difraction of sound can be easily observed but difraction of light difficult to relise?

Posted by Sweta Trivedi 5 years, 2 months ago

CBSE > Class 12 > Physics

1 answers

Mr. Singh 5 years, 2 months ago

Because Light Wavelength is actually less than a sound wave. And Diffraction is more in longer wavelength waves, as is less in wider slits. The wavelength of sound is of the order of 1meter. ...Diffraction of light an be best observed when a small slit is used.

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Shetravad ko badava dene vale koi do karak btao

Posted by Saloni Kashyup 5 years, 2 months ago

CBSE > Class 12 > समाजशास्त्र

0 answers

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School kiske open Ho gay hai aur Kown Kown ja raha hai

Posted by Mr. Singh 5 years, 2 months ago

CBSE > Class 12 > Biology

5 answers

Mr. Singh 5 years, 2 months ago

Okok

Tanya ?? 5 years, 2 months ago

@ mr. Singh pehle 2 November se open hue the fir dobara 20 nov ko band ho gye aur fir 14 December se khule hue h.

Sweta Trivedi 5 years, 2 months ago

Mere open go gya hai pr mai nhi ja rhi hu

Mr. Singh 5 years, 2 months ago

Kab se open hua

Tanya ?? 5 years, 2 months ago

Hamare ho gye open....aur hum ja rhe h.

ANSWER

How we calculate NPS RATIO

Posted by Sneha Gupta 5 years, 2 months ago

CBSE > Class 12 > Accountancy

1 answers

Shreyansh Jain 5 years, 2 months ago

NPS=(net profit before int and tax/revenue from operation)×100

3Thank You

ANSWER

Do you know why mother's milk is considered very essential for the new born infant??

Posted by Mr. Singh 5 years, 2 months ago

CBSE > Class 12 > Biology

5 answers

Tanya ?? 5 years, 2 months ago

Yaar mere ko ye colostrum wala reason nhi pta tha ...mujhe lga ye nutrients provide krta h that is why it is essential..

Sweta Trivedi 5 years, 2 months ago

Because mother milk have colustrum contain Iga antibody to protect baby

4Thank You

Mr. Singh 5 years, 2 months ago

Haa, colostrum main pardha hua tha but confusion tha.But Tanya ne jo Ans bataya vo jada samj nhii aya.

Manish Rajput 5 years, 2 months ago

Because mother milk have colustrum contains immunity

Tanya ?? 5 years, 2 months ago

Bcoz it supplies proper nutrients to the baby.

ANSWER

Table GYM: (i) To display the names of all the items whose name starts with “A". (ii) To display ICODEs and INAMEs of all items, whose Brand name is Reliable or Coscore. (iii) To change the Brand name to “Fit Trend India” of the item, whose (iv) Add a new row for a new item in GYM with the details: “Gl07", "Vibro exerciser”,21000,”GTCFitness" (v) SELECT COUNT (DISTINCT (BRANDNAME) ) FROM GYM; (vi) SELECT MAX (PRICE) FROM GYM, (vii) SELECT INAME FROM GYM WHERE INAME LIKE "%t’,

Posted by Ankush Anubhav 5 years, 2 months ago

CBSE > Class 12 > Informatics Practices

1 answers

Nidhi M 5 years, 2 months ago

(i) select names from gym where name like "A%" ; (ii) select ICODEs,INAMEs from gym where bname like " Reliable" or like "Coscore" ;

4Thank You

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to display icode and iname of all items,whose brand name is reliable or coscore cbse 2013 class 12

Posted by Ankush Anubhav 5 years, 2 months ago

CBSE > Class 12 > Computer Science

0 answers

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Sir can u tell me, Is VITAMIN B COMPLEX table Question is asked in Boards exam?

Posted by Goran Chhikara 5 years, 2 months ago

CBSE > Class 12 > Physical Education

1 answers

Diwakar Yadav 5 years, 2 months ago

ANSWER

tournament expense show in final accounts

Posted by Rohan Jha 5 years, 2 months ago

CBSE > Class 12 > Accountancy

2 answers

Muhammed Rayhan 5 years, 2 months ago

Tounament expense show in in.&exp. A/c, if excess receipt of tounament...... And (-) from tounament funds, and tounament donation. If tounament fund 10,000 Tounament donation 5,000 Tounament expense 20,000 10,0000+5,0000-200000 = 500,000 its show in in. & expenditure Account

Mohd Muaz Malik 5 years, 2 months ago

Tounament expense show in in.&exp. A/c, if excess receipt of tounament...... And deduct from tounament funds, and tounament donation. If tounament fund 10,000 Tounament donation 5,000 Tounament expense 20,000 10,000+5,000-20,000 = 5,000 its show in in. & exp. A/C.....

ANSWER

Define a wavefront

Posted by Thakur Anubhav Singh 5 years, 2 months ago

CBSE > Class 12 > Physics

2 answers

Mr. Singh 5 years, 2 months ago

Wavefront is defined as the imaginary surface constructed by the locus of all points of a wave that have the same phase, i.e. have the identical path length from the source of the wave..... For parallel rays, the waterfront is a plane surface, whereas for diverging or converging rays, the wave front is spherical.

Pooja Singh 5 years, 2 months ago

Wave front is the locus of all the points of a medium which are vibrating in the same place. I hope it helps you!!

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Keeping in view the present scenario, what should be the objectives of education in India?

Posted by Anjali Varshney 5 years, 2 months ago

CBSE > Class 12 > Economics

1 answers

Mohd Muaz Malik 5 years, 2 months ago

¤ Student adopts online education. ¤ secure time, ¤ Less expenses, risky. ¤ Proper utilization of human resources. ¤ Secure private sector. ¤ Realised, some private school more charge fees, according his service. Some course free are available in google bygovernment and some other institutions, and same courses charge high fees by some private institutions and schools...

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Find the equation of the plane which contains the line of intersection of the planes and whose x-intercept is twice its z-intercept. Hence find the equation of the plane passing through the point(2,3,-1) and parallel to the plane obtained above. Also find the equation and length of the perpendicular.

Posted by Basudev Murmu 5 years, 2 months ago

CBSE > Class 12 > Mathematics

0 answers

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summary of pheasant

Posted by J World 5 years, 2 months ago

CBSE > Class 12 > English Core

1 answers

Jashanpreet Kaur Chawla 5 years, 2 months ago

design a poster is not more than

4Thank You

ANSWER

Explain three coordinative ability

Posted by Vikas Pal ☺️☺️ 5 years, 2 months ago

CBSE > Class 12 > Physical Education

1 answers

Puneet Chauhan 5 years, 2 months ago

Intellectual ability

ANSWER

Bhojan ke Gair Poshak tatvon Ke Ghatak bataiye

Posted by Kavita Kumari 5 years, 2 months ago

CBSE > Class 12 > Physical Education

0 answers

ANSWER

Haber’s process?

Posted by ☺️Vanshika Baliyan?? 5 years, 2 months ago

CBSE > Class 12 > Chemistry

1 answers

Mr. Singh 5 years, 2 months ago

The Haber process, also called the Haber-Bosch process, is an artificial nitrogen fixation process and is the main industrial procedure for the production of ammonia today. It is named after its inventors, the German chemists FRITZ HABER and CARL BOSCH.

ANSWER

What is social about caste system?

Posted by Soilu Bhart 4 years, 11 months ago

CBSE > Class 12 > Sociology

1 answers

Sia ? 4 years, 11 months ago

The caste system divides Hindus into four main categories - Brahmins, Kshatriyas, Vaishyas and the Shudras. Many believe that the groups originated from Brahma, the Hindu God of creation. ... The main castes were further divided into about 3,000 castes and 25,000 sub-castes, each based on their specific occupation.