cbse class 12 chemistry 1 Mark Questions Archives

Important Questions CBSE Class 12 Chemistry Chapter 14 – Biomolecules

June 30, 2021August 4, 2020 by Physics Gurukul

1.Give some examples of bimolecules Ans. Examples of biomolecules – carbohydrates, proteins, Nucleic acids, Lipids, enzymes etc. 2.What are carbohydrates? Ans. Carbohydrates are optically active polyhydroxy aldehydes or ketones or the compounds which produce such units on hydrolysis. 3.Give one example of each- Monosaccharide, disaccharide and polysaccharide Ans. Monosaccharide – Glucose, Fructose etc. Disaccharide – Sucrose, maltose etc. … Read more

Important Questions Class 12 Chemistry Chapter 7 The p-Block Elements 1 Mark Questions

June 30, 2021June 30, 2020 by Manju Kaushik

1. Write the elements of group 15? Ans. The elements of group 15 are Nitrogen (N), Phosphorous (P) , Arsenic (As) , Antimony (Sb) and Bismuth (Bi). 2. Write chemical name & formulae of a) Chile saltpetre b) Indian saltpetre Ans. (a) Chile saltpetre – Sodium nitrate – (b) Indian saltpetre – Potasium nitrate – 3. … Read more

Important Questions Class 12 Chemistry Chapter 6 General Principles and Processes of Isolation of Elements 1 Mark Questions

June 30, 2021June 4, 2020 by Physics Gurukul

1. What is pig iron? Ans. The iron which is obtained from blast furnace and contains about 4% carbon and many other impurities in smaller amounts like S, P, Si, Mn etc, is called pig iron. 2. What is cast iron? Ans. Iron obtained by melting pig iron with scrap iron and coke using hot air blast … Read more