A. form starch sugar and fibrous material
B. ripen the seeds and fruits
C. increase the resistance against disease
D. all the above statements are correct
Related Mcqs:
- Which of the following potassium fertilizers are more useful for horticultural crops tobacco & potatoes ?
A. KCI
B. KNO3
C. K2SO4
D. KMnO4 - What is a mixture of Potassium Nitrate Powdered Charcoal and Sulphur called?
A. Paint
B. Glass
C. Gun Powder
D. CementSubmitted by: ABDUL HAYEE
- Which alcohol will undergo elimination reaction to give alkene in the presence of acidic potassium dichromate ?
A. Primary alcohol
B. Secondary alcohol
C. Tertiary alcohol
D. All of above - Potassium Permanganate is used for purifying drinking water, because_________?
A. It is a sterilising agent.
B. It dissolves the impurities of water.
C. It is a reducing agent.
D. It is an oxidising agent.Submitted by: Muhammad Ali Kunbhar
- Lactic acid on oxidation by alkaline potassium permanganate gives:____________?
A. Propionic acid
B. Cinnamic acid
C. Pyruvic acid
D. Tartaric acidSubmitted by: Said wali shah
- Phosphene gas will be produced if phosphorous acid is subjected to___________________?
A. Oxidation
B. Reduction
C. Decomposition
D. Both b & c - Grignard reagent is reactive due to___________________?
A. the presence of halogen atom
B. the presence of magnesium atom
C. the polarity of C-Mg bond
D. all - DAP (Diammonium hydrogen phosphate) contains ______________ plant nutrients?
A. 60%
B. 65%
C. 70%
D. 75% - Which one of the following fertilizers provides the nitrogen and phosphorus to the plant ?
A. urea
B. calcium superphosphate
C. diammonium phosphate
D. potassium nitrate - Which of the following factors help to measure quallity of water ?
A. DO
B. BOD
C. COD
D. all of the above
