[HDquiz quiz = “5237”]
Browsing: Science
1. What is the pH value of water ? A. 3 B. 4.5 C. 6.5 D. 7 ANSWER & SOLUTION…
[HDquiz quiz = “5225”]
1. Catalysts work by _________. A. Increasing the concentration of reactants B. Decreasing the rate of reaction C. Providing an…
[HDquiz quiz = “5202”]
1. In which hydrocarbon all the four valencies of carbon are linked together with single bond? A. Alkanes B. Alkenes…
[HDquiz quiz = “5189”]
1. Antidotes are used in __________. A. Poisoning B. Cough C. Vomiting D. Acidity ANSWER & SOLUTION ANSWER:A.Poisoning SOLUTION :…
[HDquiz quiz = “5178”]
1. Which one of the following is a main component of fertilizers? A. Chlorine B. Hydrogen C. Methane D. Ammonia…