Science Blog

Science Blog

Here we share some questions that our students ask us.

Sometimes there are some questions which left un-answered , we at The Unconditional Guru will surely try to solve them for you.

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The SN2 mechanism

This is a type of reaction mechanism that is seen in case of nucleophillic substitution reactions. It is BIMOLECULAR NUCLEOPHILLIC SUBSTITUTION mechanism. In this kind of mechanism two molecules decide the rate of reaction, so it is BIMOLECULAR mechanism. The whole mechanism proceeds through a single step. That concerted step involves the bond breaking and

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How the age of mummies , dead bodies and fossils is calculated?

The aging of different organisms is mainly calculated by the special technique called the Radiocarbon dating. In this technique the age of any specimen is calculated on the basis of the present amount of an isotope of a particular element. Isotopes are the atoms of an element that have same atomic number but different atomic

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Why sky appears blue in colour ?

The particles of atmosphere which are of colloidal size can easily scatter the blue component of the light. The wavelength of blue light allows its scattering easily. That’s why it appears blue in colour.

The plant related to study.

Today i am going to talk about a plant which we used to think that enhances are learning capabilities and used to keep the leaves of this plant in our notebooks during our childhood. The scientific name of this plant is Thuja orientalis. It is an ornamental plant and it can be seen increasing the

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ਪਾਠ 2

ਅਸੀਂ ਲਾਲ ਲਿਟਮਸ ਦੀ ਮਦਦ ਨਾਲ ਹੇਠ ਲਿਖੇ ਤਰੀਕੇ ਨਾਲ ਤੇਜ਼ਾਬ,  ਖਾਰ ਅਤੇ ਪਾਣੀ ਦੀ ਪਹਿਚਾਣ ਕਰ ਸਕਦੇ ਹਾਂ । 1. ਤਿੰਨੋ ਪਰਖਨਲੀਆਂ ਵਿੱਚ ਲਾਲ ਲਿਟਮਸ ਪਾਓ । 2. ਹੁਣ ਇਹਨਾਂ ਦੇ ਰੰਗ ਨੂੰ ਧਿਆਨ ਨਾਲ ਵੇਖੋ। 3. ਜਿਸ ਪਰਖਨਲੀ ਵਿੱਚ ਰੰਗ ਲਾਲ ਤੋਂ ਨੀਲਾ ਹੋ ਗਿਆ ਹੈ, ਉਸ ਪਰਖਨਲੀ ਵਿੱਚ ਖਾਰ ਹੈ। 4. ਹੁਣ

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ਪਾਠ 1 ਛੇਵੀਂ

1. ਅੰਸ਼ ਜਾਂ ਕੱਚੀ ਸਮੱਗਰੀ :- ਭੋਜਨ ਨੂੰ ਤਿਆਰ ਕਰਨ ਲਈ ਵਰਤੇ ਜਾਣ ਵਾਲੇ ਪਦਾਰਥਾਂ ਨੂੰ ਕੱਚੀ ਸਮੱਗਰੀ ਕਿਹਾ ਜਾਂਦਾ ਹੈ । 2. ਖਾਣਯੋਗ :- ਓਹ ਸਾਰੇ ਪਦਾਰਥ ਜਿਨ੍ਹਾਂ ਨੂੰ ਖਾ ਕੇ ਅਸੀਂ ਆਪਣੇ ਸਰੀਰ ਦੀਆਂ ਲੋੜਾਂ ਨੂੰ ਪੂਰਾ ਕਰ ਸਕਦੇ ਹਾਂ । 3. ਫੁੱਲਾਂ ਦਾ ਰਸ :- ਫੁੱਲਾਂ ਤੋ ਮਿਲਣ ਵਾਲਾ ਮਿੱਠਾ ਤਰਲ ਪਦਾਰਥ

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Why the chemical bonding takes place?

Kossel and Lewis in 1916 Developed the theory for the bond formation after watching the behavior of noble gases. The noble gases were inert in behavior and do not react with any substance. Kossel and Lewis found that the Octateof noble gases was complete so they do not react. They gave the theory that the

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