Which of these is not a macronutrient for Plants?
1). Nitrogen
2). Phosphorus
3). Potassium
4). Chlorine
2. Water can be separated from alcohol water mixture by
3. Diamonds are glittering and attractive because light incident on them undergoes
4. The fundamental particles present in the nucleus of an atom are
5. The addition of gypsum to Portland cement helps in :
6. Which of the following is used to iodine common salt
7. The metal used to galvanise iron to protect it from rusting is
9. Which one of the following pairs is NOT correctly matched?
10. Question 5.3:Why are powdered substances more effective adsorbents than their crystalline forms?