Deficiency of fluoride leads to which one of the following health problems?
Tooth caries
Which one of the following acids is also known as Vitamin C?
Which one of the following is an amphoteric oxide?
Vinegar is
Dolomite powder is applied in some agricultural lands. The purpose of applying it is to
How many moles of CO can be obtained by reacting 2.0 mole of CH 4, with 2.0 mole of O 2, according to the equation given below?
\(C{H_4}\left( g \right) + \frac{1}{2}{O_2} \to CO + 2{H_2}\)
The molecular mass of sulphuric acid is 98. If 49 g of the acid is dissolved in water to make one litre of solution, what will be the strength of the acid?
In paper manufacturing, degumming of the raw material is done using
Stinging hair of nettle leaves inject fluid in the human body causing burning pain. The fluid is
Which one of the following naturally occurring acids is found in abundance in tomato ?
Match List-I with List-II and select the correct answer using the code given below the Lists:
List - I (Compound) | List-II (Use) |
| A. Boric acid | 1. Antiseptic |
| B. Citric acid | 2. Food Preservative |
| C. Magnesium hydroxide | 3. Antacid |
| D. Acetic acid | 4. Pickle |
Code:
What is the pH of a solution prepared by dissolving $0.0025$ moles of $HNO_3$ in $250\,mL$ of water?
Which species acts as acid like behaviour in the following reaction?
\(HPO_4^{2-}+NH_4^{1+}\rightarrow H_2PO_4^{1-}+NH_3\)
Aqueous solution of CH 3COONa is:
pH of a neutral solution is ___________.
For the reaction N 2(g) + 3H 2(g) \(\rightleftharpoons\) 2NH 3(g) ΔH = -ve :