The colour of phenolphthalein in the pH range 8.0 – 9.8 is
APink
BOrange red
CYellow
DColourless
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വ്യത്യസ്ത മണ്ണിനങ്ങളുടെ pH മൂല്യം തന്നിരിക്കുന്നു. ഏതു മണ്ണിനാണ് കുമ്മായം ചേർക്കേണ്ടത്?
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Consider the below statements and identify the correct answer?
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