Biology, asked by yogeshpatil3636, 1 year ago

Blood clotting can be prevented in a test tube by adding a little [CPMT 1984]
A) Sodium oxalate
B) Sodium chloride
C) Sodium hydroxide
D) Ammonium chloride

Answers

Answered by Vandanasingh891
1
Answer=A
Because it react with cation of blood
Answered by Surnia
1

Answer: A. Sodium oxalate

Explanation:

Sodium oxalate is a sodium containing salt of oxalic acid. It is a white colored, crystalline powder. It is odourless. It removes the calcium from the blood, and prevents the clotting of blood. Thus it should be added to the test tube.

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