# ICSE Class 12 Science Free Doubts and Solutions

### ICSE - XII Science - Mathematics

## Prove that the subspace of R 3 consisting of triplet (a, b, c) with c = 0 is a subspace of R 3 , which is isomorphic to R 2 .

**Mohamad07danish**1st February 2022, 12:22 PM

### ICSE - XII Science - Mathematics

## Differentiate wrt x 1) (1+ cos x) / x 2) sin(2x)cos^2 (x)

**nishabr7**8th July 2021, 11:19 PM

### ICSE - XII Science - Chemistry

## Benzene and toulene boil at same temperature

**bharanichemistry123**5th July 2021, 3:43 PM

### ICSE - XII Science - Physics

## Find the potential of the field created by the dipole at point A, located at a distance r=0.5 m, in a direction at an angle 300, relative to the electric moment of the dipole. Medium is water. The dipole is formed by charges q=2·10-7 C, that located at a distance l=0.5 cm.

**Zithinmuppalla**10th March 2021, 3:09 PM

### ICSE - XII Science - Physics

## Please give answer these questions

**nranjith65001**22nd February 2021, 8:32 AM

### ICSE - XII Science - Mathematics

## Solve the whole problem

**Aneesattar25**26th January 2021, 12:29 PM

### ICSE - XII Science - Chemistry

## A copper concentrate (CuFeS2 + FeS2 + gangue) of composition (wt%) Cu = 6%, S = 35% is roasted with (20+RN*)% excess air. Copper in the roasted product is as Cu2S and all the iron is converted to Fe2O3. Assuming that the gangue does not contain any Cu, Fe and S, Calculate for 1 ton of concentrate i) amount of minerals and gangue ii) volume of air supplied for roasting at STP. iii) Volume and composition of the evolved gas (flue) after roasting [atomic weight of Cu=64, Fe= 56, S=32, O=16, N=14]

**deepakmardi22**21st November 2020, 10:09 AM

### ICSE - XII Science - Mathematics

## Find inverse of A .. urgent.

**Aayush**31st August 2020, 12:59 PM

### ICSE - XII Science - Mathematics

## Please answer step by step

**subhbksc1**27th August 2020, 2:50 PM

### ICSE - XII Science - Mathematics

## what is integration

**shivakhandaits**27th July 2020, 1:16 PM