MCQ
Corrosion can not be prevented by which of the following method?
- AGalvanisation.
- BCreate a barrier between the object being corroded and oxygen.
- CPainting.
- DExposing it to sunlight.
✓
Answer
- Exposing it to sunlight.
Explanation:
Corrosion can be prevented by creating a barrier between the object and oxygen. Galvanisation is a process to prevent corrosion and so is painting. However, exposing to sunlight is not a method to prevent corrosion.
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
If we use pyrene $(CC{l_4})$ in the Riemer-Tiemann reaction in place of chloroform, the product formed is
→Consider the given reaction, the product $'X^{\prime}$ is:
→In which of the following pairs, the outer most electronic configuration will be the same ?
Which ine of the following statement about lanthanides is false?
Steps $I$ and $II$ are
→Standard electrode potential for $Sn^{4+}/Sn^{2+}$ couple is $+ 0.15\, V$ and that for the $Cr^{3+} /Cr$ couple is $- 0.74\, V.$ These two couples in theirstandard state are connected to make a cell.The cell potential will be ........ $V$
→Consider two reactions
→$I$ . $Zn +$ conc. $HNO_3$ (hot) $\to Zn(NO_3)_2 + X + H_2O$
$II$. $Zn +$ dil. $HNO_3$ (cold) $\to Zn(NO_3)_2 + Y + H_2O$
Compounds $X$ and $Y$ are respectively
2.33g of compound X(empirical formula CoH12N4Cl3) upon treatment with excess AgNO3 solution produces 1.435g of a white precipitate. The primary and secondary valences of cobalt in compound X, respectively, are.
[Given : Atomic mass: Co = 59, Cl = 35.5, Ag = 108].
[Given : Atomic mass: Co = 59, Cl = 35.5, Ag = 108].
What is the structure of carbonyl group?
For a given reaction $3A + B \to C + D$ the rate of reaction can be represented by
→