Question
गरीब माँ-बाप अपना
……………….. कर बच्चों को पढ़ाते हैं और वे चिंता नहीं करते। रिक्त स्थान की पूर्ति सटीक मुहावरे से कीजिए :-Solution
The correct answer is B
What does trypsin do?
Which acid is found in vinegar?
Which of the following pair of element – atomicity is correct?
I. Helium – monoatomic
II. Oxygen – triatomic
Which of the following apparatus is used to test the acidity of the aqueous solution?
Alkali metals have ______.
I. low melting points
II. low densities
If water smells bad, then that odor can be removed by adding:
Which of the following is the hardest mineral?
Which gas is evolved during the reaction of an acid with a metal?
What does Mohs scale measure?
What changes will happen to a bowl of ice and water kept at exactly zero degree Celsius?