Fluorine has the highest electronegativity. As a fluorine is the smallest and first element of its group. So, down the group of electro-negativity decreases due to increase atomic size.

Class 10 Science Terminal Exams MCQ Solutions Class X Science MCQ Extra Questions Answers 10th Science Terminal Exam Based MCQ Extra Questions Class 10th Science CBSC Sample paper

Class 10th Science Session 2022-23 Class 10 Science Terminal Exams MCQ Solutions Class X Science MCQ Extra Questions Answers 10th Science Terminal Exam Based MCQ Extra Questions

As the object is kept at 40 cm or 2f. Image will also be formed at 2f. It will be a real and inverted image will be formed in front of the mirror and image will be of same size ...

Absolutely true, Osmosis, is the movement of water (molecules) by a selectively permeable membrane. It is the passage of water from an area of high-water concentration to an area of low water concentration through a semi-permeable membrane.

The plasma membrane allows the entry and existence of certain materials in and out of cells. Hence, it is called selectively permeable membrane.