Given,molality = 0.0020 mΔ Tf = 0o C -0.007320 Ckf = 1.86 oC/mΔTf = i.kf x mi = ΔTf/ kf x m= 0.00732/1.82 x 0.0020= 1.92 = 2

The ter-BuONa acts as base and gives elimination product. The molecule in fourth option do not give unsaturation test because do not contain a double bond after the reaction tert−BuONa .

Boron is an element of 13 group and contains three electrons in its valence shell. When its compound BH3 dimerises, each boron atom carry only 6e-, that is their octet is incomplete. Hence (BH3)2 is a deficient compound.In all other given molecules octet of central atoms is complete.

Office Memorandum is a communication issued by an appropriate authority stating the policy or decision of the government. 

The little swallow did not leave the happy Prince and went to Egypt because it seemed to be touched by Prince s kindness. The happy Prince sacrificed his eyes to help the poor and became blind. It thought of helping the poor with the help of the Prince.

भारत में सौर ऊर्जा का भविष्य निम्नलिखित कारणों से उज्जवल है-(i) भारत एक उष्ण कटिबंधीय देश है।(ii) इसमें सौर ऊर्जा के दोहन करने की भारी संभावनाएँ हैं।(iii) फोटोवोल्टाइक प्रौद्योगिकी से सूर्य के प्रकाश को सीधे विद्युत में बदल दिया जाता है।(iv) ग्रामीण और दूरदराज इलाकों में सौर ऊर्जा तेजी से प्रचलित हो रही है।(v) सौर ऊर्जा संयंत्रों को भारत के विभिन्न भागों में स्थापित किया जा रहा है, जिससे प्रदूषण को कम करने में सहायता मिलती है। यह पर्यावरण संरक्षण में महत्वपूर्ण योगदान देता है।

भारत में सौर ऊर्जा का भविष्य निम्नलिखित कारणों से उज्जवल है-(i) भारत एक उष्ण कटिबंधीय देश है।(ii) इसमें सौर ऊर्जा के दोहन करने की भारी संभावनाएँ हैं।(iii) फोटोवोल्टाइक प्रौद्योगिकी से सूर्य के प्रकाश को सीधे विद्युत में बदल दिया जाता है।(iv) ग्रामीण और दूरदराज इलाकों में सौर ऊर्जा तेजी से प्रचलित हो रही है।(v) सौर ऊर्जा संयंत्रों को भारत के विभिन्न भागों में स्थापित किया जा रहा है, जिससे प्रदूषण को कम करने में सहायता मिलती है। यह पर्यावरण संरक्षण में महत्वपूर्ण योगदान देता है।

In simple harmonic motion, the total energy of the particle is constant at all instants which are totally kinetic when the particle is passing through the mean position and is totally potential when the particle is passing through the extreme position.The variation of PE and KE with time is shown in the figure, by the dotted parabolic curve and solid parabolic curve respectively.Figure indicated that maximum values of total energy KE and PE of SHM are equal.Now, EK = Ko cos2 ωttherefore, (EK)max = KoSo, (EP)max = Koand (E)Total  = Ko

Their knowledge of ancient texts gave them immense confidence and moral support which they utilised in promoting new laws. They did not get feared when people raised voice against the reforms they had brought. ... Social reformers had to discard the ancient texts in order to argue for reform in social practices.

If the temperature of the sun were to increase form T to 2T and its radius from R to 2R, then the ratio of the radiant energy received on earth to what it was previously will be. Step by step solution by experts to help you in doubt clearance & scoring excellent marks in exams.

The criterion for the classification of organisms under the kingdom monera and protista is:The organisms which are unicellular and do not have a membrane bound nucleus and organelles are put under Monera. While the unicellular organisms which have membrane bound definite nucleus and organelles are classified as Protista.

 Arenas means the areas where crisis and war occurred or threatened to occur between the alliance systems but did not cross certain limits and there was no nuclear war or world hostilities, Arenas of the Cold War were as given below :
(i) The Cuban Missile crisis took place in 1962.
(ii) The two superpowers came into direct confrontations in Korea (1950-53), Berlin (1958-62) and theCongo (The early 1960s).
 Results : (i) Many people died in arenas like Korea, Vietnam and Afghanistan.
(iii) In some cases huge military build-ups were reported.
(iv) In many cases, diplomatic communication b

Constraints are necessary to develop respect for views and beliefs of others. It is necessary for the creation of a society. Absence of constraint would lead to imposition of beliefs and ideas of stronger groups eventually leading to conflict. Constraints are required to control violence and settle disputes.

The limiting molar conductivity of an electrolyte is defined as its molar conductivity when the concentration of the electrolyte in the solution approaches zero.
The conductivity of an electrolyte solution is the conductance of ions present in a unit volume of the solution. The number of ions (responsible for carrying current) decreases when the solution is diluted or the concentration is decreased. As a result, the conductivity of an electrolyte solution decreases with the decrease in concentration.

Find list of CBSE Statewise Affiliated Schools in India. Get all Statewise and Region wise Indian and Country wise all Forgien CBSE Affiliated Schools. Find the right school for your need board wise. You have an option to browse schools through region wise, state wise or district wise. Students can enroll themselves for any at free of cost.