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করোনারি আর্টারি ডিজিজ (CAD) চিকিৎসায় নির্দেশিত হয়।
ভাব-সম্প্রসারণের ক্ষেত্রে কয়েকটি দিকের প্রতি বিশেষ দৃষ্টি দেওয়া প্রয়োজন। যেমন : প্রদত্ত চরণ বা গদ্যাংশটি একাধিকবার অভিনিবেশসহকারে পড়তে হবে। লক্ষ্য হবে প্রচ্ছন্ন বা অন্তর্নিহিত ভাবটি কী, তা সহজে অনুধাবন করা...
1 Answers 6 viewsDue to ammoniated cation and ammoniated electron.
1 Answers 1 viewsAll alkali metal dissolve in liquid ammonia giving deep blue solutions which are conducting in nature. These solutions contain ammoniated cations and ammoniated electrons as shown below: M + ( x...
1 Answers 1 views(a) In ammonia (NH3) , N and H present in fixed ratio which supports the law of definite or constant proportions. This law states, “a pure chemical compound always consists of...
1 Answers 1 viewsAt room temperature, the vapour pressure of liquid ammonia is very high. On cooling vapour pressure decreases, therefore the liquid ammonia will not splash out
1 Answers 1 viewsUnit of k explain that it is zero order reaction.
1 Answers 1 viewsUnit of k explain that it is zero order reaction.
1 Answers 1 views[Hint : Ag+ (aq) + 2NH3 (aq) => [Ag(NH3)2]+ (aq)]
1 Answers 1 viewsIt is important to remove CO in the synthesis of ammonia as CO adversely affects the activity of the iron catalyst, used in Haber’s process.
1 Answers 1 viewsWhen a cold and concentrated solution of sodium chloride reacts with ammonia and carbon dioxide, sodium hydrogencarbonate (baking soda) and ammonium chloride is formed. NaCl + NH3 + H2O + CO2...
1 Answers 1 views