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Science Preparation for Engineering Entrance

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This thread is dedicated to preparation for Science section of Engineering Entrance exams like IITJEE, RPET, BITSAT, GCET, EAMCET, ISAT, KEAM, WBJEE etc. You may share questions related to all topics from Physics and Chemistry.

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Himaja Shanmukhi

Shared from BITSAT Mock - 15 on Jun 14, 2025 6:19 PM

In which of the following groups of compounds does sulphur exhibit its highest oxidation state?

SO₃, Na₂SO₄, SO₂

Na₂S₂O₃, Na₂S₄O₆, Na₂SO₄

Na₂S₂O₃, Na₂SO₄, H₂S

Na₂SO₄, SO₂, SO₃

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Himaja Shanmukhi

Even so3 has 6 oxidation state

Even so3 has 6 oxidation state Please type your answer before submitting.

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Venugopal Reddy Dronadula

Shared from Chemistry (Practice Test) on Apr 16, 2025 7:08 AM

The maximum number of electrons in p-orbital with n = 5, m = 1 is

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Venugopal Reddy Dronadula

How to solve the question

How to solve the question Please type your answer before submitting.

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Ken Rosenberg

Shared from MHCET (B.Tech) Mock - 2 on Apr 15, 2025 6:10 PM

[CoCl₂(NH₃)₄]⁺ + CI^- [CoCI₃(NH₃)₃] + NH₃

In the above reaction, only one isomer of complex product is obtained. The initial complex is

cis isomer

trans isomer

not having stereoisomers

either cis or trans

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Ken Rosenberg

Didn't understood the explanation.. kindly provide a detailed explanation.. thank you!!

Didn't understood the explanation.. kindly provide a detailed explanation.. thank you!! Please type your answer before submitting.

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Kausalya

Shared from IUPAC Nomenclature on Jul 19, 2021 5:42 PM

IUPAC name of the organic compound that is written by the following structure is_____.

Hexane-1,3,5-trinitrile

Heptane-1,3,5-trinitrile

3-cyanohexane-1,6-dinitrile

Butane-1,3,4-trinitrile

Butane-1,2,4-trinitrile

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Riya

Since the longest chain has 4 carbon atoms its butane and 3 cyanide groups its tri nitrile 123 becoz its the lowest locant possible
rn

Since the longest chain has 4 carbon atoms its butane and 3 cyanide groups its tri nitrile 123 becoz its the lowest locant possible<br />rn Please type your answer before submitting.

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Raghavendra Joshi

Shared from BITSAT Mock - 9 on Jul 04, 2021 8:29 PM

Which of the following statements account(s) for the acidic nature of acetylene?

Acetylene contains more number of hydrogen atoms than carbon atoms.

Acetylene has a greater percentage of carbon content.

Sigma electron density of C-H bond of acetylene is closer to carbon, which has 50% of s-character.

All of these

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Raghavendra Joshi

A and C both are correct, right?

A and C both are correct, right? Please type your answer before submitting.

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Akshay

Posted on Jul 12, 2021 4:49 PM

I think TCY has rectified it.

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Science Preparation for Engineering Entrance

(2700 Posts)

This thread is dedicated to preparation for Science section of Engineering Entrance exams like IITJEE, RPET, BITSAT, GCET, EAMCET, ISAT, KEAM, WBJEE etc. You may share questions related to all topics from Physics and Chemistry.