What is the use of potassium dichromate $(K_2Cr_2O_7)$?
- AAs an oxidizing agent to convert ferrous ions $(Fe^{2+})$ to ferric ions $(Fe^{3+})$ in acidic medium
- BAs a disinfectant
- CIn electroplating
- DAs a reducing agent
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Similar Questions
If the intensity is increased by a factor of $20$,then how many decibels in the sound level increased?
If the intensity is increased by a factor of $20$,then how many decibels in the sound level increased?
$Na^+$,$Mg^{2+}$,$Al^{3+}$,and $Si^{4+}$ are isoelectronic. What is the order of their ionic radii?
The correct order of increasing $s-$character (in percentage) in the hybrid orbitals of the following molecules/ions is:
$(I)$ $CO_3^{2-}$ $(II)$ $XeF_4$ $(III)$ $I_3^-$ $(IV)$ $NCl_3$ $(V)$ $BeCl_2$
$(I)$ $CO_3^{2-}$ $(II)$ $XeF_4$ $(III)$ $I_3^-$ $(IV)$ $NCl_3$ $(V)$ $BeCl_2$
Match the following columns and select the correct option:
Column-$I$ Column-$II$ $(a)$ Floating ribs $(i)$ Located between $2^{nd}$ and $7^{th}$ ribs $(b)$ Acromion process $(ii)$ Head of humerus $(c)$ Scapula $(iii)$ Clavicle articulation $(d)$ Glenoid cavity $(iv)$ Do not connect with the sternum
$(a)\quad(b)\quad(c)\quad(d)$
| Column-$I$ | Column-$II$ |
|---|---|
| $(a)$ Floating ribs | $(i)$ Located between $2^{nd}$ and $7^{th}$ ribs |
| $(b)$ Acromion process | $(ii)$ Head of humerus |
| $(c)$ Scapula | $(iii)$ Clavicle articulation |
| $(d)$ Glenoid cavity | $(iv)$ Do not connect with the sternum |
$(a)\quad(b)\quad(c)\quad(d)$
In Young's double slit experiment,if the slit widths are in the ratio $1 : 9$,then the ratio of the intensity at minima to that at maxima will be
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