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Tetra ammino copper (II) chloride

Osmotic Pressure:-

The extra pressure that must be applied to the soln component to prevent the flow of solvent into the solution when the two are separated by SPM. It is devoted by II.

Osmotic pressure be come abnormal due to-

(i) Association or dissociation of solute molecule in the soln.

(ii) Solutue is volatile

(iii) Solute become electolyte

Answer (C) The valence electrons of them are found in two different subshells

Answer (a,b) N₂⁺ & O₂⁺

Answer (c)  the valence electrons of them are found in two different sub-shells

1. (c) 2. (d) 3. (a) 4. (b)

Answer (a) Mn

Answer (a) (+II)

Answer (B) +3

Answer (B) Chloral

1. (C) 2. (D) 3. (B) 4. (A)

Answer (A) the temperature will decrease

Correct option  (3)  5/2²⁰

Explanation:

Sum of all number of set S = 210.

We have to find numbers whose sum is 203.

So basically we have to remove 7.

7 can be obtained as 7

1, 6

2, 5

3, 4

1, 2, 4 

Total = 5

Samples space = 2²⁰ 

So   5/2²⁰. 

Quantity A:

Speed = Distance/Time

50 = Distance / 6

Distance = 300 km

To complete the journey in 5 hours

Speed = 300/8 = 37.5 km/hr

Quantity B: 40 km/hr

∴ Quantity A < Quantity B

Quantity A:

P(E) = Number of favorable outcomes/ total number of outcomes

⇒ Let E is a probability of an event.

⇒ Total number of outcomes = 10

⇒ Number of favorable outcomes = 5

P (E) = 5/10 = 1/2

Quantity B: 1/3

∴ Quantity A > Quantity B

D. 1/3

In one mowing, 1/3 portion of lawn grass should be cut.

Given:

the grass of a lawn is cut by a man = T minutes

Concept used:

If a person does work in n days,

then one day work by a person = 1/n part of the total work.

Calculation:

∴  Grassland will be cut by a man in 1 minute = 1/T part

⇒ In 30 minutes, Grassland will be cut by a man = (1/T) × 30 part

⇒ In 30 minutes, Grassland will be cut by a man = 30/T part

Hence, part of the lawn can be cut in 30 minutes is 30/T.

The correct answer is Chandrashekhar.

• Chandrashekhar is the national leader who walked the marathon 'Padayatra' from Kanyakumari to Rajghat in Delhi in 1983.
• Covering a distance of nearly 4260kms from January 6, 1983, it was completed on June 25, 1983.
• The Padayatra was undertaken to renew rapport with the masses and to understand their pressing problems.

• Shri Chandra Sekhar was among the few individuals in the then ruling party who was imprisoned during the Emergency.
• He has been a Member of Parliament since 1962 except for a brief period from 1984 to 1989.

Given that \(\alpha\) and \(\beta\) are zeros of the quadratic polynomial f(x) = ax² + bx + c.

\(\because\) sum of zeros is \(\alpha\) + \(\beta\) \(=\frac{-b}{a}\).

And product of the zeros is \(\alpha \beta\) \(=\frac{c}{a}\).

Now, \(\frac{(\alpha+\beta)^2}{\alpha\beta}\) \(=\frac{\alpha^2}{\alpha\beta}+\frac{\beta^2}{\alpha\beta}+\frac{2\alpha\beta}{\alpha\beta}\) 

\(=\frac{\alpha}{\beta}+\frac{\beta}{\alpha}+2\)

⇒ \(\frac{\alpha}{\beta}+\frac{\beta}{\alpha}\) \(=\frac{(\alpha+\beta)^2}{\alpha\beta}-2\) \(=\frac{\left(\frac{-b}{a}\right)^2}{\frac{c}{a}}-2\) 

\(=\frac{b^2}{ac}-2\) \(=\frac{b^2-2ac}{ac}\)

\(\Rightarrow \frac{\alpha}{\beta}+\frac{\beta}{\alpha}\) \(=\frac{b^2-2ac}{ac}\) ...........(1)

And \(\frac{(\alpha+\beta)^3}{\alpha\beta}\) \(=\frac{\alpha^3+\beta^3+3\alpha^2\beta+3\alpha\beta^2}{\alpha\beta}\)  

\(\Big(\because (a+b)^3\) \(=a^3+b^3+3a^2b + 3ab^2\Big)\)

\(=\frac{\alpha^2}{\beta}+\frac{\beta^2}{\alpha}+3\alpha+3\beta\)

\(=\frac{\alpha^2}{\beta}+\frac{\beta^2}{\alpha}+3(\alpha+\beta)\)

\(\Rightarrow \frac{\alpha^2}{\beta}+\frac{\beta^2}{\alpha}\) \(=\frac{(\alpha+\beta)^3}{\alpha\beta}\) \(-3(\alpha+\beta)\)

\(=(\alpha+\beta)\left(\frac{(\alpha+\beta)^2}{\alpha\beta}-3\right)\)

\(\Rightarrow \frac{\alpha^2}{\beta}+\frac{\beta^2}{\alpha}\) \(=\frac{-b}{a}\left(\frac{\left(\frac{-b}{a}\right)^2}{\frac{c}{a}}-3\right)\)  

(By putting values of \(\alpha \) + \(\beta\) and \(\alpha \)\(\beta\))

\(=\frac{-b}{a}\left(\frac{b^2}{ac}-3\right)\) ..........(2)

Now, \(a\times \left(\frac{\alpha^2}{\beta}+\frac{\beta^2}{\alpha}\right)\) \(+b\times \left(\frac{\alpha}{\beta}+\frac{\beta}{\alpha}\right)\)  

\(=a\left(\frac{-b}{a}\times \frac{b^2-3ac}{ac}\right)\)\(+b\times \left(\frac{b^2-2ac}{ac}\right)\)  (From equation (1) and (2))

\(=\frac{-b^3+3abc}{ac}+\frac{b^3-2abc}{ac}\)

\(=\frac{-b^3+3abc+b^3-2abc}{ac}\)

\(=\frac{abc}{ac}\)

\(=b\).

The correct answer is Ashok Nagar.

• The fair of Jogeshwari is organized at Chanderi (Famous for silk) in the Ashoka Nagar district. This fair is organized every year during the month of Chaitra (March-April).
• In this fair Clothes, Utensils, and Cattle are sold and purchased. 
• In this district, the state's only open jail (Mungawali) is situated.

The correct answer is NDTV.

• Ravish Kumar is New Delhi Television Network (NDTV) India's senior executive editor and one of India's most influential TV journalists.
• He has been reporting real-life and under-reported problems of ordinary common people.
• He hosts many programs include Prime Time, Hum Log, Ravish Ki Report, and Des Ki Baat.
• Television journalist Ravish Kumar was honored with the prestigious Ramon Magsaysay Award 2019 for giving "voice to the voiceless".
• He was awarded Red Ink Award for Journalist of the Year in 2016.

The correct answer is Assam.

• Ambubachi Mela is one of the biggest congregations in eastern India. It is the most important festival of the Kamakhya temple and is celebrated in the month of June every year.
• It is more of a ritual of austerities, a festival celebrated with Shakti rites. The belief is that Kamakhya embodies the mother cult, the Shakti.

• Kumbh Mela is a very big fair and the largest gathering of Hindu pilgrims, celebrated every twelve years at four holy places Prayag (Allahabad), Haridwar, Ujjain, and Nashik.
• The Sonepur Cattle Fair held (November) on full moon day in Bihar, on the confluence of river Ganges and Gandak. Sonepur Fair is also known as the Harihar Chhetra Mela.
• Pushkar Fair is one of the world’s largest camel fairs, held (October-November) in the oldest city of Rajasthan “Pushkar”. The Pushkar camel fair attracts a large number of visitors from all around the world, especially from Israel.
• Hemis Gompa festival is a religious fair and one of the most auspicious Occasions for the Buddhist community in India.

The currency of European Union is Euro

A. Goods that can be bought for 1 dollar in the US would require 22 rupees in India

The correct answer is God Particles.

• Higgs Boson is also known as  God Particles.
• It is a subatomic particle whose existence is predicted by the theory which unified the weak and electromagnetic interactions.
• It is the fundamental particle associated with the Higgs field, a field that gives mass to other fundamental particles
• Nobel Prize-winning physicist Leon Lederman referred to the Higgs as the "Goddamn Particle" as it was difficult to detect it.
• The Higgs boson was proposed in 1964 by Peter Higgs, François Englert, and four other theorists to explain why certain particles have mass.
• Scientists confirmed its existence in 2012 through the ATLAS and CMS experiments at the Large Hadron Collider (LHC) at CERN in Switzerland.
• This discovery led to the 2013 Nobel Prize in Physics being awarded to Higgs and Englert.

The main goaf of the Crusades was recapturing Jerusalem which is the holy land of the Christians. Christians believe that the crucixion and resurrection of Jesus took place here. Thus Jerusalem is their most holy land. Jerusalem was once part of the Byzantine Empire. In 638, the Arabs captured it. But the Christians were given full protection by them.

There was no ban on visiting places including Jerusalem by Christian merchants, pilgrims, diplomats, and travellers. But in 1076, Seljuk Turks captured Jerusalem and from then they started persecuting the Christians there. This increased the enmity of Christians towards Muslims Many Normans, Hungarian, and Slavs became Christians around this time. Muslims Were the only rivals of Christians, The Peace of God movement in Europe also made the circumstances rife for the Crusades This Movement recognized and encouraged the fight against the enemies of the Christian God and nonbelievers in Christianity.

The Crusaders gradually lost their zeal. They gave themselves to a life of luxury. Moreover, Christian rulers began to fight among themselves to get more territory. In the meantime, Salah ad-din (Saladin) built an Egyptian-Syrian Empire and gave a call for Jihad (holy war) against Christians. In 1187 he defeated the Crusaders and recaptured Jerusalem. Thus one century after the First Crusade, Jerusalem again came under the Turks. 

Saladin treated the Christiansguite humanely. They allowed them to keep the area of the sepulcher of Jesus. But, at the same time, he converted many Christian Churches into mosques. Once again Jerusalem became a Muslim city The 3 Crusade took place in 1189. It was the loss of the city of Jerusalem that prompted the Pope to give a call for another battle. 

In this war, the Crusaders did not get much benefit. They were able to capture some cities along the shores of Palestine. Christian pilgrims were given the right to visit Jerusalem at will. But in 1291 the Mamluks of Egypt, the rulers there, drove away all the Crusaders from Palestine. Europe slowly lost its interest in the Crusades. European nations began to give emphasis to their internal political and cultural development.

During the Islamic rule, many cities grew and many new cities were founded. The new cities were built to give residences to the Arab soldiers who were the backbone of the Provincial administration. These military cities were known as Misr. Kufa and Basra in Iraq and Fustar and Cairo in Egypt were the most famous of them. During the Abbasid Khalifas, the population of Baghdad reached 1 million and it became an important city. Old cities like Damascus, Isfahan, and Samarkhand also developed. The cities were interconnected.

Main military cities: 

Kufa, Basra, Fustar, Cairo.

Baghdad (capital city) 

Damascus, Isfahan, Samarkhand (old cities) 

In the heart of the city, there used to be two blocks of buildings. They were the centers for cultural and economic activities. One of them would be a mosque. It was big enough to be noticed from far. Another was a central market. In one row there would be shops, the residences of the merchants and a place, for changing money.

Between 950 and 1200, the Islamic society of the Middle Ages stood united not because of any political order or because of the one-language (Arabic) culture, but because of certain common economic and cultural factors. Even in the midst of political differences what maintained the unity was the separation between nation and society. The growth of Persian language and the intelligent discussions between different traditions nurtured this unity. 

Scholars, artists, and merchants travelled freely in the various Islamic countries and propagated their ideas, Through the converts, some of these ideas reached even remote villages. There was a big growth in the Muslim population. As a religion and as cultural system, the identity of Islam attracted members of other religion, making conversions meaningful.

Given:

The quantities of 3 kinds of drinks = 204 litres, 238 litres, and 306 litres.

Concept:

H.C.F. of two or more factors is the greatest factor that divides each of them exactly.

Calculation:

Factors of 204 = 2² × 3 × 17

Factors of 238 = 2 × 7 × 17

Factors of 306 = 3² × 2 × 17

H.C.F. of 204, 238 and 306 = 17 × 2 = 34

The capacity of each container = 34 litres

∴ The capacity of each container is 34 litres.

Given:

HCF of two numbers is 23.

Their LCM is 1035.

One of them is 207.

Formula used:

HCF × LCM = Product of two numbers

Calculation:

HCF × LCM = Product of two numbers

⇒ 23 × 1035 = 207 × X

⇒ X = (23 × 1035)/207

⇒ X = 115

So, X/23 = 115/23 = 5

∴ The value of X/23 is 5.

We ouuhgt to respect our elders.

Precis Title -Science: Blessing or Curse

Science has posed a great threat or problems but it has proved a boon for man.Really science is neither good not bad in itself.It totally depends on its use.It is used only for the welfare for humanity. It is a boon and good servant. But it is used for destruction it is a curse and a bad master.

Importance of Animals

In this passage man enjoy to seeing animals. Animals also behaves man as for good behaves. Animals also follow guide of man. Some animals as dog, monkey and some other animals helped man to search some one. Hence animal has very good importance for human being.