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The melting point of gold (Au) is 1064 oC. The melting point of silver (Ag) is 962oC. The melting point of iron (Fe) is 1535oC. The melting point of copper (Cu) is 1083oC. In the increasig order of their melting points, Gold (Au), silver .....

In the increasing order of their boiling points, aluminium (Al), iron (Fe), silver (Ag) and copper (Cu) are arranged as follows: Ag (2162oC) < Al (2519 oC) < Cu (2562oC) < Fe .....

These five organs (eyes, ears, tongue, nose, skin) which gives information about the external environment around us are called sense .....

नेपाल प्राकृतिक विविधताले भरिपूर्ण सुन्दर देश हो । यहाँ हिमाल, पहाड र तराई मिलेरझन् .....

प्रस्तुत अशंमा नेपालको बारेमा वर्णन गरिएको छ । आफ्नो देशको जुन ठाउँमा भए पनि कसैको चित्त .....

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BHC Full form - Benzene hexachloride. Use - It is used as an important agricultural pesticide mainly          used for killing white ants, leafhopper, termite, .....

To be saturated, a compound should contain a chain of carbon atoms joined by single bonds, with hydrogen atoms filling all of the other bonding orbitals of the carbon .....

A molecular formula tells only the numbers of atoms of each element in a molecule of the compound. A condensed structure shows all atoms, but it omits the vertical bonds and most or all of the horizontal single .....

In other words, they are two stable ions from one parental element. Ferrous ion is formed by eliminating 2 electrons from the iron atom, whereas ferric ion is formed by eliminating 3 electrons from the iron .....

A reaction between an alkaline earth metal and water will yield an alkaline metal hydroxide

The general reaction is as follows:

Where M is the alkaline earth metal,

M + 2H2O → M(OH)2 + .....

Here, radius (r) = 7 cm The perimeter of the given figure = 2πr /  4 +  OB + OA [ Since, Arc AB is one fourth of circle]                                 .....

You know the reaction between the iron dust and copper sulphate solution is a displacement reaction.  Fe + CuSO4 ------> FeSO4 + Cu Here, iron displaces copper from copper sulphate. To displace a metallic radical, the metal .....

i) Ca(HCO3)2(aq) → CO2(g) + H2O(l) + .....

The causes of the mass movement II are as follows: - Failure to include different marginalized and minorities in the mainstream of government. - No assurance of most of the fundamental rights of the people in the constitution of 2048. - The .....

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ii) Argon is a chemical element with symbol Ar and atomic number 18.  It is in group 18 of the periodic table and is a noble gas. This full valence shell makes argon very stable and .....

And the attraction goes on decreasing as we move down in the group. Hence, the Less is the pull, the less is the desire to attract other electrons. therefore, elements of group 15, 16 and 17 are less reactive as we go down in the .....

On the other hand,  Y- is electronegative radical which gains one electron. So, it is a non-metal and its valency is one. Since, it is a non-metal with valency one, it belongs to the group .....

आधुनिक पेरियोडिक टेबलमा ग्रुप 15 मा पर्ने तत्वहरु (N, P) को बाहिरी सेलमा 5 ओटा इलेक्ट्रोनहरु .....

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When the tympanic membrane vibrates, it also vibrates the chain of bones with it. With the vibration of the last bone the stapes, the fluid within the inner ear cochlea is moved. Thus the cells generate an impulse in the system of the inner ear .....

To find y - intercept, you should put x = 0 in the equation. So,  when x = 0, 3 × 0 - 2y = 6  or, -2y = 6 Therefore, y = - 3 y- intercept of line = - .....

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Solution: Using pythagoras theorem , x = √[52 - 32] = 4cm Now,  d1 = PQ = 2 X 3cm =  6cm d2 = QS = 2 X  4cm = 8cm Area of rhombus = 1/2  d1d2               .....

Here, Area of△CEF = 1/2 x CE x FG = 1/2 x 10cm x 6cm = 30cm2   Area of △CEB = 2 x△CEF = 2 x 30cm2   = 60cm2  [ Since, CF is median.] Area of //gm ABCD  = 2△CEB   [ on same base .....

Friendly nations are those nations which stand by each other sides in the time of need in national or in international fields. They are generally those nations who have a good diplomatic, political, trade and commerce links. Nepal has .....

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A consumer may be defined as in individual or organizations who utilize and enjoys the various products and services. These are produced, marketed and sold by various entrepreneurs. The importance of the consumer day are: It highlights the .....

बर्षमा दुई पटक पृथ्वीका सबै ठाउँमा दिन र रात बराबर हुन्छ । प्रत्यक मार्च २० र सेप्टेम्बर २३ .....

सूर्यको पिण्ड 1.99 ⨯ 10 30 kg छ । पृथ्वीको पिण्ड 5.97 ⨯ 1024 kg छ । चन्द्रमाको पिण्ड 7.34 ⨯ 1022 kg छ .....

सूर्य आकाश गङ्गा तारापुञ्जको ओरिओन (Orion arm) भागनिर अवस्थित छ .....

सूर्य र सूर्यको वरिपरी घुमिरहेका ग्रह, उपग्रह, ग्रहपुञ्ज,उल्का, पुछ्रेतारा, आदिको समष्टिगत .....

One of the main reasons people still smoke today is that they started smoking in the first place.  People start smoking for many reasons: advertisements, peer pressure, etc. And as most smokers already know, once you start smoking, it .....

Skin cells surrounding the wound undergo mitosis to make more copies of themselves. The new cells fill in the wound side-by-side and form junctions with each other and also replace old dead cells. This is possible because mitosis produces more .....

The smaller subunit is the place where mRNA binds and it decodes, whereas the bigger subunit is the place where amino acids are included Both subunits comprise of both ribonucleic acid and protein components and are linked to each other by .....

जब हामी रातको आकाश हेछौँ, हामीले उज्यालो चन्द्रमा देख्छौँ । कहिलेकाहिँ, चन्द्रमाको पुरा भाग .....

By Newton's Second law, the force of the Earth on the apple is equal to the mass of the apple times g, the accelerations due to gravity. And, the force of the apple on the Earth is equal to the mass of the Earth times the acceleration of the .....

A vector having the value of magnitude as one is called unit vector. The examples of unit vectors are (1,0) and .....

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An object that is stubby is shorter and thicker than .....

Taking a nap during the day can actually have good benefits for our health. These can be benefits like more productivity, a lifting of the spirits and a sharpening of the .....

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LHS = 1/Sin2A+Cos4A/Sin4A  

= 2cos2A/(2cos2A.sin2A) + cos4A/sin4A  

= 2cos2A/sin4A + cos4A/sin4A  

= (2cos2A + 2cos2(2A) - 1)/sin4A  

= 2cos2A(1+cos2A)/sin4A - 1/sin4A  

= .....