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This notes are hand written by the best teacher. This will definately help to understand the concpet of chemistry. Class 11th Chemistry state of matter....   THANK YOU FOR VISITING KEEP LEARNING KEEP GROWING

 CH- 'Solution'  NCERT Textbook Questio ns           formula's  NCERT Textbook Questio ns NCERT Intext Questions Q. 1.  Calculate the mass percentage of benzene (C6H6) and carbon tetrachloride (CCl4) if 22 g of benzene is dissolved in 122 g of carbon tetrachloride. Q. 2. Calculate the mole fraction of benzene in solution containing 30% by mass in carbon tetrachloride? Q. 3. Calculate the molarity of each of the following solutions: (a) 30 g of Co(NO3)2. 6H2O in 4.3 L of solution (b) 30 mL of 0.5 M H2SO4 diluted to 500 mL Q. 4. Calculate the mass of urea (NH2CONH2) required in making 2.5 kg of 0.25 molal aqueous solution. Ans. Mass of required aqueous solution = 2.5 kg = 2500 g 0.25 molal aqueous solution of urea means 0.25 mole of urea is dissolved in 1000 grams of water. Mass of water = 1000 g Moles of urea = 0.25 mol Molar mass of urea (H2NCONH2) = 4 × 1 + 2 × 14 + 1 × 12 + 1 × 16 = 60 g mol–1 Mass of urea = Number of moles of urea × Molar mass of urea\ Mass of 0.25 moles

The Solid State Chapter–1   NCE RT Textbook Questions NCERT Intext Questions Q. 1. Why are solids rigid? Ans. In solids, the constituent particles (atoms or molecules or ions) are not free to move but can only oscillate about their mean positions due to strong interatomic or intermolecular or interionic forces. This imparts rigidity. Q. 2. Why do solids have a definite volume? Ans. The constituent particles in solids are bound to their mean positions by strong forces of attraction. The interparticle distances remain unchanged at a given temperature and thus solids have a definite volume. Q. 3. Classify the following as amorphous or crystalline solids: Polyurethane, naphthalene, benzoic acid, teflon, potassium nitrate, cellophane, polyvinyl chloride, fibre glass, copper. Ans. Amorphous solids: Polyurethane, teflon, cellophane, polyvinyl chloride and fibre glass. Crystalline solids: Naphthalene, benzoic acid, potassium nitrate and copper. Q. 4. Why is glass considered a super cooled liq

                                        MAIN POINTS OF THE POEM                                         ( _A thing Of Beauty_) 1. T he poet says that a thing of beauty is a joy for ever. it never passes into nothingness. Its loveliness increase day after day as we watch it. 2. A thing of beauty is like a quiet bower where we can enjoy a sweet filled with lovely dreams. It can give us a he alth of body and peace of the mind. 3. The poet says that a beautiful thing is a kind of flowery band that binds us to this earth which is otherwise full of grief and sadness. 4. The poet lists some of the unhappy things about human life on the earth. Man always remains depressed at heart. there is a great lack of truely noble souls. Man passes all his days in constant grief or diease. 5. But in spite all this gloom, there are moments of joy when man looks at some object of beauty. 6. Among the beautiful objects, there are the sun, the moon, the cool clear streams, the big and small tress, the daffod

Here I will show you how to use fampay. (FamPay offers India's first online and offline card payments for teenagers! FamPay helps teens to make payments, online and offline through the FamCard, exclusively for teens). it is safe and easy to use. First of all open playstore.  Search Fampay on saerch bar ..  After, downloading enter your moble number & sucessful with filling OTP. Fill your details  i.e. Name, date Of birth Then, you have to complete you KYC using Aadhar card Number. Step1: Enter Aadhar number Step2: Verify it with Otp, OTP sended to your registred moblie no. with aadhar card. contiue.... then you have to click on mini Kyc in this you will not required PAN number or open without use of PAN CARD. Otherwise on click on contine you will enter your parents detail and pan number. After all your account will be create and you are able to use your UPI & QR code as well. Or you can order your Card for offline use and win exciting gifts. Send and Receive money online