In the following question, select the odd word pair from the given alternatives.
Silicon – S
Identifying the Odd Element Symbol Pair
This question requires us to identify the incorrect pairing between an element name and its chemical symbol from the given options. We need to know the standard chemical symbols for common elements.
Understanding Chemical Symbols
Chemical symbols are one- or two-letter abbreviations used to represent chemical elements. Typically, the first letter is capitalized, and the second (if present) is lowercase. Some symbols come from the element's English name (like Carbon - $\mathrm{C}$, Neon - $\mathrm{Ne}$, Silicon - $\mathrm{Si}$), while others are derived from Latin or other languages (like Sodium - $\mathrm{Na}$ from Natrium, or Sulfur - $\mathrm{S}$ from Sulphur).
Analyzing the Options
Let's examine each pair:
- Option 1: Neon – Ne
Neon is an element with the chemical symbol$\mathrm{Ne}$. This pairing is correct. - Option 2: Carbon – C
Carbon is an element whose chemical symbol is$\mathrm{C}$. This pairing is correct. - Option 3: Sodium – Na
Sodium is an element with the chemical symbol$\mathrm{Na}$, derived from its Latin name 'Natrium'. This pairing is correct. - Option 4: Silicon – S
Silicon is an element. Its standard chemical symbol is$\mathrm{Si}$. The symbol$\mathrm{S}$represents the element Sulfur. Therefore, this pairing is incorrect.
Comparing Element Symbols
The key is to match the element name with its universally accepted chemical symbol. The symbol $\mathrm{S}$ correctly represents Sulfur, not Silicon.
| Element Name | Given Symbol | Correct Symbol | Status |
|---|---|---|---|
| Neon | $\mathrm{Ne}$ |
$\mathrm{Ne}$ |
Correct |
| Carbon | $\mathrm{C}$ |
$\mathrm{C}$ |
Correct |
| Sodium | $\mathrm{Na}$ |
$\mathrm{Na}$ |
Correct |
| Silicon | $\mathrm{S}$ |
$\mathrm{Si}$ |
Incorrect |
Conclusion on the Odd Pair
Based on the analysis, the pair 'Silicon – S' is the odd one out because the correct symbol for Silicon is $\mathrm{Si}$, while $\mathrm{S}$ is the symbol for Sulfur.
Important Questions from Jumble Words
A group of letters is given in the order of 1 to 7. Four options given below represent the combination of these numbers. Select the combination of numbers according to which the arranged letters can form a meaningful word.
E I T K W N L 1 2 3 4 5 6 7 Some letters are numbered 1, 2, 3, 4, 5 and 6. In the alternatives, four possible arrangements of these numbers are given. Select that option so that the letters form a meaningful word.
P A M S I H
1 2 3 4 5 6
In the following question, select the odd word from the given alternatives.
In the following question, a group of letters is given which are numbered 1, 2, 3, 4, 5 and 6. Below are given four alternatives containing combinations of these numbers. Select that combination of numbers so that letters arranged accordingly, form a meaningful word.
L R P E A Y
1 2 3 4 5 6Arrange the following words in a logical and meaningful order.
1. Paste
2. Copy
3. Save
4. Print
5. Select
