Find the best tutors and institutes for Class 12 Tuition

Find Best Class 12 Tuition

Please select a Category.

Please select a Locality.

No matching category found.

No matching Locality found.

Outside India?

Search for topics

Class 12 Tuition Updates

Ask a Question

Post a Lesson

All

All

Lessons

Discussion

Answered 4 days ago CBSE/Class 11/Science/Chemistry CBSE/Class 11/Science/Chemistry/Unit 4-Chemical Bonding and Molecular Structure

Species having same bond order are (a) N2 (b) N–2 ... read more
Species having same bond order are
(a) N2                      
(b) N2                       
(C) F+2                      
(d) o2

read less

Dibyendu Debnath

Chemistry Tutor

C & d.
Answers 2 Comments
Dislike Bookmark

Answered 4 days ago CBSE/Class 11/Science/Chemistry/Unit 4-Chemical Bonding and Molecular Structure CBSE/Class 11/Science/Chemistry

Explain why PC15 is trigonal bipyramidal whereas IF5 is square pyramidal.

Ravi Kumar

Tutor

Firstly we determine no. of hybrid orbitals by this formula H=1/2(v+m-c+a) where,v-total no of valence electron on central atom,m-total no of surrounding monovalent atoms , c-charge of cation,a-charge of anion. For PCl5,H=1/2(5+5-0+0)=5,sp3d hybridization and shape trigonal bipyramidal and for... read more

Firstly we determine no. of hybrid orbitals by this formula H=1/2(v+m-c+a) where,v-total no of valence electron on central atom,m-total no of surrounding monovalent atoms , c-charge of cation,a-charge of anion.         For PCl5,H=1/2(5+5-0+0)=5,sp3d hybridization and shape trigonal bipyramidal and for IF5 H=1/2(7+5-0+0)=6,sp3d2 hybridization and shape square pyramidal.

read less
Answers 1 Comments
Dislike Bookmark

Asked 2 days ago CBSE/Class 11/Science/Chemistry/Unit 8-Redox Reaction

E° values of some redox complexes are given below. On the basis of these values choose the correct... read more
E° values of some redox complexes are given below. On the basis of these values choose the correct option.
E° values: Br2/Br = +1.90; Ag+/Ag(s) = +0.80 Cu2+/Cu(s) = +0.34; I2(s)/I = +0.54 V
(a) Cu will reduce Br
(b) Cu will reduce Ag
(c) Cu will reduce I                               
(d) Cu will reduce Br2 read less

Answer

Looking for Class 12 Tuition

Find best Class 12 Tuition in your locality on UrbanPro.

FIND NOW

Asked 2 days ago CBSE/Class 11/Science/Chemistry/Unit 8-Redox Reaction

The oxidation number of an element in a compound is evaluated on the basis of certain rules. Which of... read more
The oxidation number of an element in a compound is evaluated on the basis of certain rules. Which of the following rules is not correct in this respect?
(a) The oxidation number of hydrogen is always +1.
(b) The algebraic sum of all the oxidation numbers in a compound is zero.
(c) An element in the free or the uncombined state bears oxidation number zero.
(d) In all its compounds, the oxidation number of fluorine is -1. read less

Answer

Asked 2 days ago CBSE/Class 11/Science/Chemistry/Unit 8-Redox Reaction

Identify disproportionation reaction (a) CH4 + 202 → C02 + 2H20 (b) CH4 + 4C12 → CC14 + 4HCl... read more
Identify disproportionation reaction
(a) CH4 + 202 → C02 + 2H20
(b) CH4 + 4C12 → CC14 + 4HCl
(c) 2F2 + 20H→2F + OF2 + H20
(d) 2N02 + 20H → N02 + NO3 + H20 read less

Answer

Asked 2 days ago CBSE/Class 11/Science/Chemistry/Unit 8-Redox Reaction

Which of the following statement(s) is/are not true about the following decomposition reaction? 2KCIO3... read more
Which of the following statement(s) is/are not true about the following decomposition reaction?
2KCIO3 →2KC1 + 302
(a) Potassium is undergoing oxidation.

(b) Chlorine is undergoing oxidation.
(c) Oxygen is reduced.
(d) None of the species are undergoing oxidation or reduction. read less

Answer

Looking for Class 12 Tuition

Find best Class 12 Tuition in your locality on UrbanPro.

FIND NOW

Asked 2 days ago CBSE/Class 11/Science/Chemistry/Unit 8-Redox Reaction

Identify the correct statement(s) in relation to the following reaction: Zn + 2HCl → ZnCl2 + H2... read more
Identify the correct statement(s) in relation to the following reaction:
Zn + 2HCl → ZnCl2 + H2
(a) Zinc is acting as an oxidant.

(b) Chlorine is acting as a reductant.
(c) Hydrogen ion is acting as an oxidant.
(d) Zinc is acting as a reductant. read less

Answer

Asked 2 days ago CBSE/Class 11/Science/Chemistry/Unit 8-Redox Reaction

The exhibition of various oxidation states by an element is also related to the outer orbital electronic... read more
The exhibition of various oxidation states by an element is also related to the outer orbital electronic configuration of its atom. Atom(s) having which of the following outermost electronic configurations will exhibit more than one oxidation state in its/their compounds.
(a) 3s1
(b) 3dl4s2                 
(c)  3d24s2
(d) 3s23p3 read less

Answer

Asked 2 days ago CBSE/Class 11/Science/Chemistry/Unit 8-Redox Reaction

PbO and Pb02 react with HC1 according to following chemical equations: 2PbO + 4HCl → 2PbCl2 + 2H20... read more
PbO and Pb02 react with HC1 according to following chemical equations:
2PbO + 4HCl → 2PbCl2 + 2H20
Pb02 + 4HC1 → PbCl2 + Cl2 + 2H20
Why do these compounds differ in their  reactivity? read less

Answer

Looking for Class 12 Tuition

Find best Class 12 Tuition in your locality on UrbanPro.

FIND NOW

Asked 2 days ago CBSE/Class 11/Science/Chemistry/Unit 8-Redox Reaction

Write balanced chemical equations for the following reactions: (i) Permanganate ion (Mn0–4) reacts... read more
Write balanced chemical equations for the following reactions:
(i) Permanganate ion (Mn04) reacts with sulphur dioxide gas in acidic medium to produce Mn2+ and hydrogensulphate ion. (Balance by ion- electron method)
(ii) Reaction of liquid hydrazine (N2H4) with chlorate ion (C103) in basic medium produces nitric oxide gas and chloride ion in gaseous state. (Balance by oxidation number method)
(iii) Dichlorine heptaoxide (C1207) in gaseous state combines with an aqueous solution of hydrogen peroxide in acidic medium to give chlorite ion (C102) and oxygen gas. (Balance by ion-electron method) read less

Answer

About UrbanPro

UrbanPro.com helps you to connect with the best Class 12 Tuition in India. Post Your Requirement today and get connected.

x

Ask a Question

Please enter your Question

Please select a Tag

UrbanPro.com is India's largest network of most trusted tutors and institutes. Over 25 lakh students rely on UrbanPro.com, to fulfill their learning requirements across 1,000+ categories. Using UrbanPro.com, parents, and students can compare multiple Tutors and Institutes and choose the one that best suits their requirements. More than 6.5 lakh verified Tutors and Institutes are helping millions of students every day and growing their tutoring business on UrbanPro.com. Whether you are looking for a tutor to learn mathematics, a German language trainer to brush up your German language skills or an institute to upgrade your IT skills, we have got the best selection of Tutors and Training Institutes for you. Read more