What is a mixture of Potassium Nitrate Powdered Charcoal and Sulphur called?

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1. Potassium nitrate is used in__________?

   A. Medicine B. Fertilizer C. Salt D. Glass Submitted by: Farjan Ahmed Soomro...

2. Animal charcoal adsorbs the coloured_________________?

   A. impurities B. crystals C. solvents D. both A & B...

3. The composition of brown ring in nitrate test is_________________?

   A. FeSO4.No B. FeSO4.No2 C. FeSO4.No3 D. FeSO4.N2o...

4. Nitrate (NO3) ions are obtained by the process of __________?

   A. Nitrification B. Fermentation C. Denitrification D. None of these Submitted by: Sana...

5. What is the formula of Silver nitrate?

   A. AgNO B. AgNO2 C. AgNO3 D. AgNO4 Submitted by: Muhammad Kamal...

6. Silver nitrate is also known as____________?

   A. Blue Stone B. Blue Vitriol C. Lunar Caustic D. Both A & B Submitted by: Muhammad Kamal...

7. Silver nitrate is used in laboratory as a reagent for the detection and determination of____________?

   A. Alkali metals B. Aldehydes C. Halides D. Ketones Submitted by: Muhammad Kamal...

8. Which of the following is the use of Silver nitrate?

   A. used as mordant in dyeing B. used in photography and medicines C. used in making green pigments D. All of these Submitted by: Muhammad Kamal...

9. Potassium meta-bisulphite is used as a food preservative for?

   A. Squash B. Tomato Ketchup C. Fruit Juices D. Pickles Submitted by: Malik Asghar Hussain...

10. Which of the following potassium fertilizers are more useful for horticultural crops tobacco & potatoes ?

    A. KCI B. KNO3 C. K2SO4 D. KMnO4...