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The full form of IUPAC is  International Union of Pure and Applied Chemistry .....

A functional group is an atom or group of atoms that determines the chemical properties of hydrocarbon. For example -OH(Hydroxyl) is the function group for  alcohol. Here, you can see OH in every alcohol .So, it is called functional .....

The two example of inorganic compounds are  1. H2O - Water is a simple inorganic compound, even though it contains hydrogen, a key atom (along with carbon) in many organic compounds. The atoms in a molecule of water have formed very simple .....

   मिति :२०७३/३/२१

श्रीमान् प्रधानाध्यापक,

भानु उच्च माध्यमिक .....

Definitely, nation and nationality are greater than other things. We know that nation is our pride. It is the place where a citizen burns and dies. We love our nation very much and work a lot for the betterment of our nation. Similarly, .....

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please try to find the values of x and y using equation (i) and .....

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From LHS,    Cos2 (45° + A) + Cos2(45°- A)  = [Cos{90∘ - (45° - A)}]2+ Cos2(45°- A)     [ 90∘ - (45∘ - A) = 45∘ + A] = Sin2(45∘ - A) + Cos2(45°- A)    [ cos (90∘ - A) = .....

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Now, put p = 1 in q/p = 3, we get, or, q/1 = 3 or, p = .....

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If the annual population growth rate is 1.35, the population of a place will double in 51. 85 years. There is a formula to calculate population doubling time, PDT = 70/R Here,  P= Population D= Doubling T= .....

y = f(x) = 2x2 - 5 Now, 4 f(x) - 2(f(2)) = 4[2x2 - 5] - 2[2(2)2 - 5] = 8x2 - 20 - 6 = 8x2 - 26 So, 4 f(x) - 2(f(2)) = 8x2 - .....

g(x - 2) = x2 - 4x - 9 Putting x = 7, g(7 - 2) = 72 - 4*7 - 9 or, g(5) = 49 - 28 - 9 = 12. Therefore, g(5) .....

The United Nations Development Programme (UNDP) is the UN's global development network. It advocates for change and connecting countries to knowledge, experience and .....

We have given, Surface area of cube = 54cm2 Let l be the length of side of cube,  Then,  Surface area = 6 X  l2 or, 54 cm2 = 6 X  l2 or, l2 = 9cm2 or, l = √ ( 9cm)2 l = 3cm Hence length of sides .....

We know, volume =  capacity of tank. So, volume = l x b x h = 200cm x 150 cm x 100cm                   = 3000000cm3                  .....

Let the number be 10x + y where x is the digit in tenth place and y the digit in unit place. From condition, 10x + y = 4(x + y) + 3 or, 10x + y = 4x + 4y + 3 or, 6x - 3y = 3 or, 2x - y = 1 or, y = 2x - 1 .........(i) From another .....

Similarly, you can prove that MHS= .....

Here, let he buys y no. of lichties, Then, Total no =y+y=2y CP of mixture = [ y x 5 +yx 8]=  13y SP= 2 y x 6= 12y Here CP > SP,  Now can you write, what will happen?  Gain or .....

Metals like iron are very good conductors of heat and electricity unlike plastics. When we touch an iron chair in winter, it quickly absorbs the heat from our body(because it is a very good cinductor of electricity) and we feel cold. However, .....

Neon naturally has a stable electronic configuration, i.e. it has eight electrons in its last shell. So, it does not need to react with other elements to have a stable electronic configuration. Hence, it is .....

Atomic mass of water(H2O) = 1 *2 + 16 = 18 amu. Therefore, 1 mole of water = 18 .....

Uses: - Aqua regia is useful to dissolve gold and platinum and thus,    helps in the extraction and purification of gold and platinum.    (in the production of chloroauric acid in the Wohlwill process for refining .....

Uses of carbogen: - It can be used as part of the early treatment of central retinal artery occlusion.       (a disease of the eye where the flow of blood through the central retinal artery is blocked).  - .....

The equation is :  Ca(OH)2 (aq) + 2HCl (aq) → CaCl2 (aq) + 2H2O (l) .  This reaction is called a double replacement reaction  It can also be called as an acid / base neutralisation .....

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 ‘अरूले घोडा चढे भनेर आफूले धुरी चढ्नु हुँदैन’ भनेको अरूको देखासिकी गरेर झन् ठूलो बन्ने .....

2. An atom of an element can sometimes lose more electrons than     are present in its valence shell.     i.e. loss from the penultimate shell and hence exhibit more than 1 or variable valency.     Eg:  Cu 1+ .....

For a cuboid shaped room, Area of floor = Area of celling = l x b  [Where l = Length and b = .....

Characteristics of arboreal animal are: 1. Their body is small and stout.      Ribs are very much curved, thus thorax becomes semicircular. 2. They have sharp and sticky claws to climb up and down the branches. 3. They usually .....

धाराविद्युतको ताप असरका कारण विजुलीको चिमभित्र भएको फिलामेन्ट तात्दछ ।  फिलामेन्टमा .....