a. 2Mg + N2 ⟶ 2MgN b. Mg(OH)2 + 2 HNO3 = Mg(NO3)2 + 2 H2O c.FeO + HCl = FeCl2 + H2O d. H2 + I ⟶ 2HI e. Zn + 2 AgNO3 = Zn(NO3)2 + 2 Ag f. Na + 2H2O ⟶ Na(OH)2 + 2H g. .....

Four life processes are Reproduction  ( producing similar organisms ) metabolism ( consumption of energy ) Growth Sensitivity ( knowledge about external environment .....

a. KCl + AgNO3 ⟶ KNO3 + AgCl b. 2AgBr ⟶ 2Ag + Br2 c. 2KClO3 ⟶KCl + 3O2 d. Mg + CaCl2⟶MgCl2 + Ca e. Mg(OH)2 + CO2 ⟶H2O + MgCO3  f. CuCO3 ⟶ CuO+CO2  g. 2C6H6 + 15O2 ⟶12CO2 + 6H2O h. H2 + Cl2 ⟶2HCl i. H2O + SO2 .....

a. 2KClO 3  ⟶ 2KCl  + 3O 2  b. 2Na + Cl2 ⟶ 2NaCl c.2 AgNO3 (aq) + CaCl2 (aq)⟶ 2 AgCl (s) + Ca(NO3)2  d. Iron + sulphur ⟶ferous sulphide e.  2NaCl 2Na + Cl2 ⟶ 2Na + Cl2 f. .....

CO2 is obtained by plant through leaves. In leaves of green plant, there is chlorophyll. During photosynthesis, leaves absorb carbon dioxide and releases oxygen. Chlorophyll , in presence of sunlight, convert carbon dioxide and water into .....

Do you know rate of chemical reactions increases when surface area is increased. When CaCO3 is grinded into powder, its surface area .....

There was sudden environmental change due to impact from an asteroid. Dinosour couldn't adapt to this new type of environment. And they became .....

You can increase rate of reaction by increasing temperature of reactants  using catalyst cutting substances into smaller .....

Here, XXX = 30 VII = 7 So, XXXVII = .....

For the formation of fossil fuel or coal, high heat and pressure is required. You can not get such temperature and pressure on surface of .....

If I were one of the signatories of the Delhi Accord I would do the following things: - I would talk to the other parties for the inclusion of democratic norms and values. - I would try my best not to violate the constitutional provisions made in .....

You can convert vapor into water by condensation process. In condensation process, we cool down water vapor using different techniques.   In lab, water vapor is allowed to passed through condenser, which cool down vapor to .....

Example of sublimates are Camphor Dry ice Iodine .....

Supply correct future tenses. 1. After this meeting, we will go to meet her. 2. I don't think she will meet us at 10. 3. At that time tomorrow she will be attending a conference on book writing.  4. She'll be tired then because she .....

Sperm is reproductive cell, which is produced by male. During fertilization, sperm fuses with egg produced by female, and produces .....

According to Toptenpedia, Japan is the most advanced country in technology. Japan has made tremendous contributions to the world in the fields of robotics, electronics, automobiles, metals, and earthquake engineering. With 13 Nobel Prize .....

Every substance have three states. They are solid, liquid and gas. When We heat solid, it becomes liquid and when we heat liquid, it becomes gas. When we cool gas, it becomes liquid and when we cool liquid it becomes solid. Such change from one .....

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The purpose of the organs of the male reproductive system is to perform the following functions: 1.To produce, maintain, and transport sperm (the male reproductive cells) and rotective fluid (semen) 2. To discharge sperm within the female .....

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LHS= 2 sinπc4-θ sin3πc4-θ = cosπc4-θ-3πc4-θ-⁡cosπc4-θ+3πc4-θ     ( 2 sinA sinB = cos ( A - B ) + cos ( A + B .....

Here, (2cosα + 1 ) (2cosα - 1) = 2cos2α + 1) LHS = (2cosα + 1 ) (2cosα - 1)            = 4 cos2α - 1               = 2.( 2cos2α .....

To prove:  2sinα-sin2α2sinα+sin2α=tan2α2 LHS =2sinα-sin2α2sinα+sin2α   = 2sinα-2sinα.cosα2sinα+2sinα.cosα        .....

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B. Matching of similar words: i)  lay ------ arrangement ii) doubted ----- .....

Choose the correct option to complete the following: The evening star rises when the sun decends in the west. Here,'bower' represents a bouquet of flowers. The poet compares moon to a flower.  The angels come down on earth to give .....

Let the points  (1,3), (3,1), (6,2) and (4,4) represents the points A, B , C and D AB2 = (3 - 1)2 + (1 - 3)2 or, AB = √8 BC2 = ( 6 - 3)2 + (2 - 1)2 or, BC = √10 CD2 = ( 4 - 2)2 + ( 4 - .....

In binary number system a number is represented with a combintion of 0s and 1s. So is 12 can not be a binary .....

Heritage sites are valued objects, expressions, arts and artifacts. Heritage sites are the national wealth and national property. They are the sites of cultural, religious or historical significance. They provide the national identity to the .....

घोषणापत्र = प्रमुख राजनीतिक दलले आगामी दश वर्षभित्र मुलुकको ऊर्जा क्षेत्रको विकासका लागि .....

Now, ∡B = 30o  [ ∵ AO = BO.] So, ∡OAB + ∡B = ∡BOD     [ .............can you explain reason?]        ∡ BOD =  60o Similarly, ∡C = ∡OAC = 20  .....

व्याकरणमा काल भन्नाले क्रियापदले बुझाएको समय भन्ने बुझिन्छ । वक्ताले बोल्ने क्रममा कुन .....

नेपाल कविताका रचनाकार युगकवि सिद्धिचरण श्रेष्ठ (१९६९ – २०४९) हुन् । उनी प्रगतिवादी तथा .....

Before starting be familiar with this relation: Let us suppose a matrix A. The transpose of the matrix is given by A'. Now, To prove: .....

The RHS is a 2x1 matrix so for that A should also be a 2x1 matrix.  Let the matrix A be ab. Now,  8-214A=265 or,8-214ab=2×62×5 or,8×a+-2×b1×a+4×b=2×62×5 or,8a-2ba+4b=1210 Now .....

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Here,  2x+32y-23z+4=5-81220-3-472 or,2x+32y-23z+4=5×7+-8×212×7+20×2-3×7+-4×2 or,2x+32y-23z+4=19124-29 Comparing the like terms we get, 2x + 3 = 19  or, 2x = 19 - 3  or, 2x = 16 or, x = 8 2y - 2 .....

Here, If AB is possible, column of A must be equal to row of B i.e;     x + 5 = y ......................(i) Again, if BA is possible, column of B must be equal to row of A. i.e;  11 - y = x  .....

Tropical desert climate lies between 20o and 30oN and S of the equator. Tropical desert climate has bright and sunny days. Most parts of this region look sandy, barren and naked. The average rainfall is less than 25cm. It has extreme .....

The life of desert dwellers is very difficult because of extremely hot and dry climate. Primitive nomadic tribes live in small numbers. The people of desert areas have generally nomadic lifestyle. They keep moving in search of food and water .....

The desert plants have tiny, waxy and leathery leaves which helps them minimize loss of water. The plants have thorns or spines. The thorns and spines help them prevent loss of water through evaporation. These plants sed leaves and stop growing .....

In order to avoid energy crisis, following steps can be adopted: 1. Priority should be given to renewable sources of energy such as solar energy, hydro-electricity etc. 2. More focus should be provided in proper use of available fossil .....

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=2×62+4852×2+4582×2+22×72 =2×62+4852×2+4582×2+22×72 =62+4852+4582+2×72 Taking .....

Given,  320+45+5+35+3 = 320+45+1 Taking LCM = 320.5+4+1.55 = 320×5+4+55 = 3100+4+55 = 3×10+4+55 = 30+4+55 = 34+55 Rationalizing using .....

Temperate zone is quite suitable for human settlements. This region is favourable for agriculture, animal husbandry, and plants. In your book, you might have studied that temperate zone has mainly four types of climate. They .....

(√(x+2)-√(x-2))/(√(x+2)+√(x-2))=1/2 2√(x+2)-2√(x-2)=√(x+2)+√(x-2) or,2√(x+2)- √(x+2)=2√(x-2)+√(x-2) or,√(x+2)=3 √(x-2) Squaring,we .....