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Due to smaller size and lone pair repulsion in the oxygen atom, it is not able to show catenation property while sulphur due it's larger size than oxygen and less repulsion between lone paire due to distance between them , it can exist as S8 in nature and hence shows catenation property.

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Bharaman Jha 4 years, 3 months ago

Elctronegativity is one of the cause

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Shashank 11 4 years, 3 months ago

Because oxygen is more electronegative than sulphur due to which repulsion b/w oxygen molecules is high..

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ANSWER

2H² + O²

Posted by Sarthak Gupta 4 years, 3 months ago

CBSE > Class 12 > Chemistry

2 answers

Sher Singh 4 years, 3 months ago

2 H20

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Sarthak Gupta 4 years, 3 months ago

2H²O

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Why H2S is acidic while H2O is neutral?

Posted by Atharva Verma 4 years, 3 months ago

CBSE > Class 12 > Chemistry

2 answers

Tanishqa Arora 4 years, 3 months ago

As we go down the group of halides the tendency to lose hydrogen increases. Therefore acidity increases.

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Akash Soni 4 years, 3 months ago

Becacuse in H2O H bond occurs which make them strong bond so bond doesn't dissociate easily and not give H+ In H2S H bond not occur so easily dessociate to give H+. H2O is not neutral it is weak acidic

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ANSWER

Halide react with amine

Posted by Anchal Maurya 4 years, 3 months ago

CBSE > Class 12 > Chemistry

0 answers

ANSWER

How we know that which lattice is used in close packing structures??

Posted by Rakesh Agrawal 4 years, 3 months ago

CBSE > Class 12 > Chemistry

4 answers

Sher Singh 4 years, 3 months ago

By it's geometry

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Atharva Verma 4 years, 3 months ago

Wah wah ?

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Aditi Agrawal 4 years, 3 months ago

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Aditi Agrawal 4 years, 3 months ago

By studying chem day and night

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ANSWER

What is oxidation number of zn in ZnSo4

Posted by Anjali Singh 4 years, 3 months ago

CBSE > Class 12 > Chemistry

5 answers

Atharva Verma 4 years, 3 months ago

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Scientist ..????? 4 years, 3 months ago

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Aditi Agrawal 4 years, 3 months ago

10000000000

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Bhumika Agrawal 4 years, 3 months ago

+10,

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Ankit Kumar Giri 4 years, 3 months ago

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ANSWER

The p‐p‐p angle in p⁴ molecules is......degrees-

Posted by Harshvardhan Gupta 4 years, 3 months ago

CBSE > Class 12 > Chemistry

2 answers

Shashank 11 4 years, 3 months ago

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Dεερακ Ȿιηɠꜧ 4 years, 3 months ago

120 maybe

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The number of 1° and 2° alcoholic group in fructose is

Posted by Jayasree Ks 4 years, 3 months ago

CBSE > Class 12 > Chemistry

1 answers

Himanshi Rajput 4 years, 2 months ago

2° = 3 1° = 2

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ANSWER

What is solis

Posted by Sakhiya Dodamani 4 years, 3 months ago

CBSE > Class 12 > Chemistry

1 answers

Sia ? 4 years, 3 months ago

Solis is a Spanish name derived from the Latin sol, literally meaning sun. Alternate Spelling(s): Solís, de Solís, de Solis, Solano, Sol, de Sol.

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Equal weight of A and B (M.wt 200g and 400g respectively) are mixed to form a solution. If the vapour pressure of two volatile liquid A and B 110mm and 100mmHg then respectively then calculate the vapour pressure of solution

Posted by Nisha Singh 4 years, 3 months ago

CBSE > Class 12 > Chemistry

0 answers

ANSWER

Libermann Nitroso reaction

Posted by Chidharth S 4 years, 3 months ago

CBSE > Class 12 > Chemistry

0 answers

ANSWER

How to find density of unit cell

Posted by Dayanand Yadav 4 years, 3 months ago

CBSE > Class 12 > Chemistry

3 answers

Mohammad Shish 4 years, 3 months ago

Trick→ Zamuna ke Niche a³ Formula→ d = (Z×M)÷(Ñ× a³) for d→Density of the unit cell Z→rank of the unit cell N→Avogadro's Constant=6.022375×10²³ a³ → Volume of the unit cell aⁿ→ is a constant value a →is side of the unit cell

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Sher Singh 4 years, 3 months ago

Density= no.of atoms × atomic mass/avagadro no.×(a)^3 Where a is the edge length of unit cell

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Shashank Singh 4 years, 3 months ago

D =z×M/ Na ×a×a×a

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ANSWER

In ques no. 1.12 , how the coordination number of p is 8?

Posted by Rakesh Agrawal 4 years, 3 months ago

CBSE > Class 12 > Chemistry

1 answers

Shashank 11 4 years, 3 months ago

Because centred p atom is touched by 8 Q atoms all Q are present at corners

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ANSWER

How we can prevent corrosion?

Posted by Atharva Verma 4 years, 3 months ago

CBSE > Class 12 > Chemistry

2 answers

Sia ? 4 years, 3 months ago

Use non-corrosive metals, such as stainless steel or aluminium
Make sure the metal surface stays clean and dry
Use drying agents
Use a coating or barrier product such as grease, oil, paint or carbon fibre coating
Lay a layer of backfill, for example limestone, with underground piping
Use a sacrificial anode to provide a cathodic protection system

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Atharva Verma 4 years, 3 months ago

What is inert pair effect

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ANSWER

Reduced syllabus all subjects

Posted by Ranger King 4 years, 3 months ago

CBSE > Class 12 > Chemistry

3 answers

Ranger King 4 years, 3 months ago

Physics syllabus term 1 and2????

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Ranger King 4 years, 3 months ago

Physics Class XII Syllabus assigned for Term II (Theory) Time: 2 Hours Max Marks: 35 No of Periods Marks Unit–V Electromagnetic Waves 02 17 Chapter–8: Electromagnetic Waves Unit–VI Optics 18 Chapter–9: Ray Optics and Optical Instruments Chapter–10: Wave Optics Unit–VII Dual Nature of Radiation and Matter 07 11 Chapter–11: Dual Nature of Radiation and Matter Unit–VIII Atoms and Nuclei 11 Chapter–12: Atoms Chapter–13: Nuclei Unit–IX Electronic Devices Chapter–14: Semiconductor -Electronics: Materials, Devices and Simple Circuits

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Ranger King 4 years, 3 months ago

Physics Syllabus assigned for Term I (Theory) Time: 90 Minutes Max Marks: 35 No. of Periods Marks Unit–I Electrostatics 23 17 Chapter–1: Electric Charges and Fields Chapter–2: Electrostatic Potential and Capacitance Unit-II Current Electricity Chapter–3: Current Electricity Unit-III Magnetic Effects of Current and Magnetism Chapter–4: Moving Charges and Magnetism Chapter–5: Magnetism and Matter Unit-IV Electromagnetic Induction and Alternating Currents Chapter–6: Electromagnetic Induction Chapter 7: Alternating currents

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ANSWER

Assertion: 1molar NaCl solution has higher boiling point than one molar urea Reason:NaCl dissociates into ions in solution

Posted by Shreya Sharma 4 years, 3 months ago

CBSE > Class 12 > Chemistry

2 answers

Scientist ..????? 4 years, 3 months ago

Assertion and reason both are correct

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❤️Ritesh Gupta? 4 years, 3 months ago

How are you

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ANSWER

Chemistry reduced syllabus

Posted by Pushkar Pandey 4 years, 3 months ago

CBSE > Class 12 > Chemistry

1 answers

Ranger King 4 years, 3 months ago

Chemistry SYLLABUS FOR SESSION 2021-22 CLASS XII Term-I S.No UNIT Periods MARKS 1 Solid State 2 Solutions 3 p-Block Elements 4 Haloalkanes and Haloarenes 5 Alcohols, Phenols and Ethers 6 Biomolecules

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ANSWER

Concentration of ores is done by

Posted by Vaishnavi Agnihotri 4 years, 3 months ago

CBSE > Class 12 > Chemistry

0 answers

ANSWER

BrCH2 CHCL CHCL2

Posted by Krishna Kanta Krishna Kanta 4 years, 4 months ago

CBSE > Class 12 > Chemistry

0 answers

ANSWER

IUPAC name of the following 3dr C2 h5 clch2cooh 5cl 3

Posted by Krishna Kanta Krishna Kanta 4 years, 4 months ago

CBSE > Class 12 > Chemistry

0 answers

ANSWER

Packing efficiency by arrangement of atoms in two dimensional hexagonal close packing is

Posted by Swathi Priya 4 years, 4 months ago

CBSE > Class 12 > Chemistry

2 answers

Mohammad Shish 4 years, 3 months ago

||90.57736% for HCP-2D|| 74.417% for HCP-3D

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Satyam Satyam 4 years, 4 months ago

90.6% is the packing efficiency of HCP in 2D

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ANSWER

What is catalyst??

Posted by Vikas Shukla 4 years, 4 months ago

CBSE > Class 12 > Chemistry

3 answers

Sher Singh 4 years, 3 months ago

Substance which faster the rate of chemical reaction without decomposing itself is known as catalyst. For example- in formation of sulphuric acid vanadium pentoxide is taken as catalyst.

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Mohammad Shish 4 years, 3 months ago

Definition| "Catalyst" is a chemical species that affects the rate of reaction|| A positive catalyst increases the rate of reaction || A negative catalyst decreases the rate of reaction

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Aman Anshuman 4 years, 4 months ago

The compounds which makes faster the reaction, without actually reacting with the reactants.

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ANSWER

Calculate molal elevation constant of water given that 0.1 molal aq.solution of a substance boiled at 100.052

Posted by Sophia Mayengbam 4 years, 4 months ago

CBSE > Class 12 > Chemistry