As we know, exam time is most difficult for the student whether they study correctly or not. This time is also required mental preparation which comes through more than ten times revision and then memories...
1.On heating lime stone release of which glass? Ans. carbon dioxide 2. Plaster of Paris made from? Ans. Gypsum 3.What is the pH of a solution of ph zero? Ans. Acidic 4.setting of plaster of Paris...
कारक क्रिया को करने में जो सहायता करते हैं , उन्हे कारक कहते हैं l कारक के प्रकार कारक मुख्यरूप से 6 होते हैं , परन्तु कुछ लोग सरलता के लिए सात भी मानते हैं l १....