Schools across state won’t reopen before Diwali: Maharashtra Govt. Mumbai: With Covid-19 positive cases showing no signs of slowing down in Maharashtra, the state government has decided to allow schools to reopen only after Diwali. This means children in over 1.2 lakh schools won’t be able to attend classes in person till November. Minister of School Education Varsha Gaikwad said the decision was taken after a meeting between her department and several school managements. Since schools are not ready to risk the lives of their students, the state has planned to push the reopening after Diwali, she said. Gaikwad said the Centre had sought the state government’s views about the resuming classes in schools for senior students. She said the Centre had also issued standard operating procedures or SOPs for the partial resumption of teaching activities in schools for students of Classes 9 to 12, on a voluntary basis, from September 21. Advertisement Advertisement “However, school managem...
1. Solid state. Solid : - solid is the state of matter in which constituent particles are bonded with strong force of attraction. 1) Isomorphism :- 1) Two or more substances having the same crystal structure are said to be Isomorphism. 2) In these substances, the chemical composition has the same ratio. 2) Polymorphism :- 1) Single substance exist in two or more forms or crystalline structure is said to be polymorphism. 2) Polymorphs of structure formed in different conditions. 3) Example : Calcite and aragonite are two forms of calcium carbonate. 4) When it occur in element is called as allotropy. Classification of crystalline solids :- 1) Ionic solid - 1) Constituent particles are charged ions. 2) Both are bonded with each other by columb force. 3) Particles are held by electrostatics force of attraction. 4) They are hard/brittle with high melting point. 5) They are non-conductor at solid state and become good conductors when dissolved into ...