MCQ
A solution whose $ pH$ value is less than $7$ will be
- ABasic
- ✓Acidic
- CNeutral
- DBuffer
✓
Answer
Correct option: B.
Acidic
b
$pH + pOH = pK _{ w }=14$
$pH + pOH = pK _{ w }=14$
If the $pH$ of a solution is less than $7$ , the solution is called acidic; In an acidic solution, then, the concentration of hydrogen ions is greater than the concentration of hydroxide ions.if the $pH$ is about $7$ , the solution is neutral; if the $pH$ is greater than $7$ , the solution is called basic.
Need a full question paper?
Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.
Explore more
Similar questions
The strength of an aqueous $NaOH$ solution is most accurately determined by titrating
→(Note : consider that an appropriate indicator is used)
Zirconium phosphate $[Zr_3(PO_4)_4]$ dissociates into three zirconium cations of charge $+4$ and four phosphate anions of charge $-3$. If molar solubility of zirconium phosphate is denoted by $S$ and its solubility product by $K_{sp}$ then which of the following relationship between $S$ and $K_{sp}$ is correct?
→Arrange following alkanes in order of their boiling points
→$(A)$ Pentane
$(B)\,2-$ Methyl butane
$(C)\,2,2-$ Dimethyl propane
An organic compound contains $C,$ $H$ and $S$. The minimum molecular weight of the compound containing $8\%$ sulphur is........$g\,mo{l^{ - 1}}$ (atomic weight of $S = 32\,amu$ )
→What is the unit of $K_p$ for the reaction ?
→$C{S_2}(g)\, + 4{H_2}(g) \rightleftharpoons \,C{H_4}(g)\, + \,2{H_2}S(g)$
The type of molecular forces of attaction present in the following compound is
Identify the wrongly match pair.
Molecule $\quad$ $\quad$ Shape or geometry of molecule
→Molecule $\quad$ $\quad$ Shape or geometry of molecule
The pH of mixture of $50 mL \frac{ N }{10} NaOH$ and 10 ml $\frac{ N }{2} H _2 SO _4$ is :
→A system absorb $600\,J $ of heat and work equivalent to $300\,J $ on its surroundings. The change in internal energy is......$J$
→Arrange the following types of interactions in order of increasing stability $($covalent, van der Waals' force, hydrogen bonding$).$
→