alleryఒక తటస్థ ద్రావణం యొక్క pH (25°C వద్ద స్వచ్ఛమైన నీరు):
A$7$
B$0$
C$14$
D$1$
Answer & Solution
Correct answer: A. $7$
pH 7 = తటస్థం.
pH < 7 అనేది ఆమ్ల స్వభావం (0 వరకు); pH > 7 అనేది క్షార స్వభావం (14 వరకు).
25°C వద్ద స్వచ్ఛమైన నీరు ఖచ్చితంగా pH = 7 ను కలిగి ఉంటుంది.
Keep practising Science & Technology
Browse all Science & Technology questions for RRB NTPC, or explore more Science topics.
Related questions
Which dicarboxylic acid is naturally present in significant amounts in spinach and tomatoeWhich organic acid is an abundant natural constituent found in tamarind and unripe mangoesUnder the Brønsted–Lowry concept, an acid is fundamentally defined as a donor of which parWhich specialized glands located in the duodenum secrete protective bicarbonate-rich mucusWhat is the hardest anatomical tissue in the human body that coats the crown of teeth?Which cartilaginous flap folds downward during swallowing to keep food from entering the tWho shared the 1929 Nobel Prize in Physiology with Frederick Hopkins for discovering vitamIn 1747, which Scottish naval physician discovered that citrus fruits prevent scurvy?