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  • 3 answers

Anshika - 5 years, 11 months ago

These are those oxide which react with both acid as well as base .zinc oxide react with hcl to give zinc chloride and hydrogen gas.2 ZnO +NaOH --- >Na2ZnO2 +H2O

Manisha Sharma 5 years, 11 months ago

The metallic oxides which shows both acidic and basic behaviour with bases and acids respt. For eg. Zinc oxide and aluminium of oxide...

Bhuvi Shetty 5 years, 11 months ago

These are the metallic oxides which shows both acidic and basic property . Such metal reacts with both acid and base to produce salt and water Al2 O3 + 6 HCL ----> 2AlCl3 + 3H2o
  • 3 answers

Manisha Sharma 5 years, 11 months ago

Nahco3 is a mild base...

Aadya Singh ? 5 years, 11 months ago

Sorry...NaCl + H2O + CO2 + NH3 -----> NH4Cl + NaHCO3

Aadya Singh ? 5 years, 11 months ago

NaCl + H2O + CO2 + NH4 --------> NH3Cl + NaHCO3
  • 3 answers

Nawal Jha Jha 5 years, 11 months ago

The civil code of 1804 also known as nopoleonic code under this code established equality before law right to property transport and communication system were improved weight and measure were standardised

Yogita Ingle 5 years, 11 months ago

The civil code or the Napoleonic code of 1804 was introduced by Napoleon Bonaparte in many parts of Europe to maintain its control. Under this code,

  1. Feudal system was abolished.
  2. Equality before the law was established.
  3. Right to property was given.
  4. Serfdoms and manorial dues was abolished.

Manisha Sharma 5 years, 11 months ago

-Removing the titles given by monarchy -Ensuring right to property - Reducing women status to minor status
  • 1 answers

Yogita Ingle 5 years, 11 months ago

Considering AZ = ZB, that means {tex}A Z^{2}=Z B^{2}{/tex}

{tex}(x-5)^{2}+(y-1)^{2}=(x+1)^{2}+(y-5)^{2}{/tex}

Squaring both the sides we get the factors and then simplifying them we get:

{tex}x^{2}+25-10 x+y^{2}+1-2 y=x^{2}+1+2 x+y^{2}+25-10 y{/tex}

12x = 8y

3x = 2y  

Hence proved

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Yogita Ingle 5 years, 11 months ago

Minerals are found in ores. Ore is defined as the accumulation of any mineral mixed with other elements. Minerals are found in various types. The types of minerals found are as follows:

• In metamorphic and igneous rocks, minerals are found in cracks, crevices and joints. Depending on the concentration they are classified into two types. The smaller one is called the veins and the larger one is called the lodes. They are formed when minerals in molten state/liquid state are forced upwards through the earth’s cavities. They solidify and form hard minerals. Example of this type is zinc, copper, lead etc.

• In sedimentary rocks, a number of minerals are found in bed or layers. They have been formed as a result of deposition, accumulation, and concentration in horizontal strata. Coal and some forms of iron ore are formed in this way. A group of sedimentary rocks like gypsum, potash salt and sodium salt are formed as a result of evaporation especially in the arid regions.

• Minerals like Bauxite are formed by weathering. It involves the decomposition of surface rocks and removal of soluble constituents leaving a residual mass.

• Minerals like alluvial deposits are found in the valley floor and base of the hills and are not corroded by water. Gold, silver, platinum are found in this way.

• The ocean floor is home to a large amount of magnesium nodules.

  • 1 answers

Chhavi Nehra 5 years, 11 months ago

Hello
  • 7 answers

Diksha? 5 years, 11 months ago

Hlw?

___ Alone _____ 5 years, 11 months ago

Hi

Diksha? 5 years, 11 months ago

Shirin??

*Shirin? * 5 years, 11 months ago

Probablity is chapter 15

Mani Kumar 5 years, 11 months ago

Probability means possible occurrence of chances out of total chances

Diksha? 5 years, 11 months ago

Probability of event= no. of favourable outcomes/ total no. of trials

Diksha? 5 years, 11 months ago

Probabilty means chances
  • 1 answers

Manisha Sharma 5 years, 11 months ago

Challenges faced by indian democracy are- 1. Corruption 2. Lack of internal democracy 3. Dynastic succession 4. Use of money and muscle power 5. No meaningful choice
  • 2 answers

Yogita Ingle 5 years, 11 months ago

{tex}Distance\: from\\ \:the \:point \:P(3,2)\: and\\ \:the \:origin\\=5{/tex}

Step-by-step explanation:

{tex}\boxed{Distance\: from\\ \:the \:point \:(x,y)\: and\\ \:the \:origin\: is\: \sqrt{x^{2}+y^{2}}}{/tex}

{tex}Distance\: from\\ \:the \:point \:P(3,2)=(x,y)\: and\\ \:the \:origin\\= \sqrt{3^{2}+2^{2}}\\=\sqrt{9+4}\\=\sqrt{13}\\{/tex}

Therefore,

{tex}Distance\: from\\ \:the \:point \:P(3,2)\: and\\ \:the \:origin\\=\sqrt{13}{/tex}

 

Manisha Sharma 5 years, 11 months ago

Oe...kya yaha par time pass kar raha h kya....faltu ke question post kare h ....kya 10 th padhi bhi nahi h kya...??
  • 1 answers

? Roman ? 5 years, 11 months ago

Please go to the subject pannel of this app, their you will get the respective notes
  • 1 answers

Yogita Ingle 5 years, 11 months ago

  Popular mindset through unbiased education,hatred free politics ,true religious teachings can prove to be very effective in curbing this meance.Following points will help you in understanding this:
 Communalism is based on the idea that religion is the principal basis of social community. All the followers of one religion belong to one community and their basic interests are the same. It is interpreted negatively when a  group following a particular religion sees its interest as mutually hostile and antagonistic with that of another religious group.  Thus, it severs as a threat of the harmony and secular spirit of a country and is a major hindrance to democracy.

This is because


 Communalism is based on the idea that religion is the principal basis of social community. All the followers of one religion belong to one community and their basic interests are the same. It is interpreted negatively when a  group following a particular religion sees its interest as mutually hostile and antagonistic with that of another religious group.  Thus, it severs as a threat of the harmony and secular spirit of a country and is a major hindrance to democracy.

b. The common form of communalism  practised everyday is based on certain customarily beliefs,  religious prejudices, stereotypes of religions communities,  belief of supremacy of one religion over the other religions. This belief of superiority of one religion becomes the root cause of conflict in the society threatening the secular edifice of a country.

  • 1 answers

Aadya Singh ? 5 years, 11 months ago

Electric potential at a point in a given electric field is the work done in moving one unit positive charge from infinity to that point..
  • 4 answers

Nawal Jha Jha 5 years, 11 months ago

Napoleon

Ajay ???? 5 years, 11 months ago

Napoleon Bonaparte

Mani Kumar 5 years, 11 months ago

Napoleon Bonaparte

Aadya Singh ? 5 years, 11 months ago

Napoleon..
  • 3 answers

Rajini Sahu 5 years, 11 months ago

Kuch bhi se kya mtlb pehle ch pado phir bolo

Rajini Sahu 5 years, 11 months ago

That in a difficult situation we should work calmly and with intelligence

Mary Queen 5 years, 11 months ago

Ye yrr kya h mtlb kuch bhi
  • 2 answers

Yogita Ingle 5 years, 11 months ago

1. Atomic number 11 is sodium and forms Na2O.
2. Atomic number 6 is carbon and forms CO2.
3. Atomic number 7 is nitrogen and forms NO2.
4. According to periodic table metallic character decreases left to right in a period,so the order of basicity is is Na>C>N.

 

Diksha? 5 years, 11 months ago

Atomic masses atomic no.?
  • 1 answers

Yogita Ingle 5 years, 11 months ago

Serbia, Greece and Bulgaria were under Turkey which was called the Ottoman Emperor.

These states wanted independence because of despotic rule of Turkey due to the right of nationalism.

Islams made the Christians their victims. So, there was frequent war to the Balkan region. So, to initiate the first word war, Balkan countries were also responsible.

The immediate cause of the First World War was:

Assassination of Archduke Franz Ferdinand the prince of Austria-Hungary) and his wife by a member of black-hand group.

Austrian government declared war against Serbia on 28th July 1914 and initiated the destructive and enormous the First World War.

  • 3 answers

Yogita Ingle 5 years, 11 months ago

It is given that, difference of two natural numbers is 5

Let the x, (x+5) are two natural numbers.

Reciprocals of the numbers are

x and 1/(x+5)

According to the problem given,

{tex}\frac{1}{x}-\frac{1}{x+5}=\frac{1}{10}{/tex}

{tex}\implies \frac{x+5-x}{x(x+5)}=\frac{1}{10}{/tex}

{tex}\implies \frac{x}{x^{2}+5x}=\frac{1}{5}{/tex}

Do the cross multiplication, we get

{tex}\implies 50=x^{2}+5x{/tex}

=> x²+5x-50=0

Splitting the middle term, we get

=> x²+10x-5x-50=0

=> x(x+10)-5(x+10)=0

=>(x+10)(x-5)=0

=> x+10 = 0 Or x-5=0

=> x = -10 Or x = 5

But the two numbers are natural numbers.

x = 5

Therefore,

Required two natural numbers are,

x = 5

and

x+5 = 5+5 = 10

 

Aadya Singh ? 5 years, 11 months ago

Two numbers are 5 and 10...

Diksha? 5 years, 11 months ago

The no. are -5 and 10
  • 1 answers

Aadya Singh ? 5 years, 11 months ago

The area of traingle formed by joining the mid point is 1 sq. unit. The area of traingle is 4 sq. unit. So, ratio = 4:1
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  • 1 answers

Yogita Ingle 5 years, 11 months ago

A polynomial is defined as an expression which contains two or more algebraic terms. It is made up of two terms namely Poly (meaning “many”) and Nominal (meaning “terms.”). Polynomials are composed of:

  • Constants such as 1, 2, 3, etc.
  • Variables such as g, h, x, y, etc.
  • Exponents such as 5 in x5 etc.
  • 1 answers

Diksha? 5 years, 11 months ago

Upper limit n lower limit is called class interval. Eg. 10-20

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