Important MCQ of Biology
0% Question 1: Breast-feeding the baby acts as a natural contraceptive for the mother because it prevents:(i) Ovulation (ii) Menstruation (iii) Insemination (iv) Fertilisation A) (ii) and (iv) B) (i)…
Chemistry MCQ
1. The IUPAC name of CH3C(CH3)2 CH2CH CH2 is : 1. 2,2-dimethyl-4-pentene 2. 4,4-dimethyl-1-pentene 3.1,1,1-trimethyl-3-butene 4 2-chloro-4,4-dimethylhexane 2. The IUPAC name of CH3 — C CCH(CH3)2 is : 1. 2-bromo-1-chloro…
Content Based Experiment of Surface Chemistry in Hindi Medium
Content Based Experiment (1) पृष्ठ रसायन (Surface chemistry) पदार्थ के पृष्ठ (Surface) के कारण उत्पन्न गुणो का अध्ययन पृष्ठ रसायन में किया जाता है। इसमें मुख्यतयाः अधिशोषण , उत्प्रेरण एंव…
Content Based Experiment of Surface Chemistry
Experiment No 1 AIM: To Prepare colloidal sol of abric gum. Theory: Gum is composed of org. compounds It forms colloidal solution when dispersed in lukewarm water. Requirements: Beaker, Glass…
MCQ of Biology
0% Question 1: The number of nuclei in a mature embryo sac are? A) Eight B) Seven C) Six D) Four Explanation: Eight Question 2: The largest cell of the…
Biology Important MCQ
0% Question 1: The hilum in a typical angiospermic ovule represents the junction between:-? A) Integuments and the embryo sac. B) Embryo sac and the nucellus C) Body of the…
Important Key Points and Questions & Answer of d- and f block element
Elements in which the last electron enters any one of the five d-orbitals of their respective penultimate shell are known as transition elements or d-block elements. Their general electronic configuration…
Important Key Points and Questions & Answer of Electrochemistry
Electrochemistry Differences between electrochemical cell and electrolytic cell Electrochemical cell (Galvanic or Voltaic cell) Electrolytic cell It is a device which converts chemical energy into electrical energy. It is a…