JEE Mains · Chemistry · STD 11 -p-Block elements - I
Given below are two statements : Statement \(I\) : Gallium is used in the manufacturing of thermometers. Statement \(II\) : A thermometer containing gallium is useful for measuring the freezing point ( \(256 \mathrm{~K}\) ) of brine solution. In the light of the above statement, choose the correct answer from the options given below :
- A Both Statement \(I\) and Statement \(II\) are false.
- B Statement \(I\) is false but Statement \(II\) is true.
- C Both Statement \(I\) and Statement \(II\) are true.
- D Statement \(I\) is true but Statement \(II\) is false.
Answer & Solution
Correct Answer
(D) Statement \(I\) is true but Statement \(II\) is false.
Step-by-step Solution
Detailed explanation
Statement - \(I\) \(\Rightarrow\) Correct Statement - \(II\) \(\Rightarrow\) False \(\mathrm{Ga}\) is used to measure high temperature
See the Complete Solution
Get step-by-step explanations for this and 2.5 Lakh+ more JEE, NEET & CET questions.
- Unlock all solutions
- Practice the full chapter
- Track accuracy across PYQs
4.8 rated on Google Play · 14,000+ reviews
More questions from Chemistry
- Excited hydrogen atom emits light in the ultraviolet region at \(2.47 \times 10^{15}\,Hz.\) With this frequency, the energy of a single photon is \((h = 6.63 \times 10^{-34}\,Js)\)JEE Mains 2014 Medium
- Among the following, the essential amino acid isJEE Mains 2017 Easy
- For the galvanic cell, \(\mathrm{Zn}(\mathrm{s})+\mathrm{Cu}^{2+}(0.02 \mathrm{M}) \rightarrow \mathrm{Zn}^{2+}(0.04 \mathrm{M})+\mathrm{Cu}(\mathrm{s})\) \(\mathrm{E}_{\text {cell }}=...... \,\times 10^{-2} \,\mathrm{~V} { (Nearest integer) }\) \({\left[\text { Use }: \mathrm{E}_{\mathrm{Cu} / \mathrm{Cu}^{2+}}^{0}=-0.34\, \mathrm{~V}, \mathrm{E}_{2 \mathrm{n} / \mathrm{Zn}^{2+}}^{0}=+0.76 \,\mathrm{~V}\right.}\) \(\left.\frac{2.303 \mathrm{RT}}{\mathrm{F}}=0.059\, \mathrm{~V}\right]\)JEE Mains 2021 Easy
- Match the LIST-I with LIST-II
Choose the correct answer from the options given belowList-I
ReagentsList-II
Name of Reaction involving carbonyl compoundA. \(NH _2- NH _2, KOH\) I. Tollen's Test B. \(Ag \left( NH _3\right)_2 OH\) II. Clemmensen Reduction C. Aq. \(CuSO _4\), Sodium Potassium tartarate, KOH III. Wolff-Kishner Reduction D. \(Zn - Hg , HCl\) Iv. Fehling's Test JEE Mains 2026 Medium - The \(Cl - Co - Cl\) bond angle values in a fac\(\left[ Co \left( NH _3\right)_3 Cl _3\right]\) complex is/are:JEE Mains 2023 Medium
- If the activation energy of a reaction is \(80.9 \,kJ \,mol^{-1},\) the fraction of molecules at \(700 \,K\), having enough energy to react to form products is \(e ^{-x}\). The value of \(x\) is ....... .
(Rounded off to the nearest integer) \(\left[\right.\) Use \(\left. R =8.31 \,J \,K ^{-1} \,mol ^{-1}\right]\)JEE Mains 2021 Easy
More PYQs from JEE Mains
- If \(y =\left(\frac{2}{\pi} x -1\right) \operatorname{cosec} x\) is the solution of the differential equation, \(\frac{d y}{d x}+p(x) y=\frac{2}{\pi} \operatorname{cosec} x, 0 < x < \frac{\pi}{2},\) then the function \(p ( x )\) is equal toJEE Mains 2020 Medium
- The mean of the numbers \(a, b, 8,5,10\) is \(6\) and their variance is \(6.8\). If \(M\) is the mean deviation of the numbers about the mean, then \(25\; M\) is equal toJEE Mains 2022 Hard
- The temperature of a metal strip having coefficient of linear expansion \(\alpha\) is increased from \(T_1\) to \(T_2\) resulting in increase of its length by \(\Delta L_1\). The temperature is further increased from \(T_2\) to \(T_3\) such that the increase in its length is \(\Delta L_2\). Given \(T_3+T_1=2T_2\) and \(T_2-T_1=\Delta T\), the value of \(\Delta L_2\) is ______.JEE Mains 2026 Medium
- The number of strictly increasing functions f from the set {1, 2, 3, 4, 5, 6} to the set {1, 2, 3,...,9} such that \( f(i)\ne i \) for \( 1\le i\le6, \) is equal to:JEE Mains 2026 Hard
- If the minimum value of \(f(x)=\frac{5 x^{2}}{2}+\frac{\alpha}{x^{5}}, x>0\), is 14 , then the value of \(\alpha\) is equal to.JEE Mains 2022 Hard
- Consider the function \(f : R \rightarrow R\) defined by \(f(x)=\left\{\begin{array}{cc}\left(2-\sin \left(\frac{1}{x}\right)\right)|x|, x \neq 0 \\ 0 & , x=0\end{array} .\right.\) Then \(f\) isJEE Mains 2021 Hard