Competishun Header

Report Issue

JEE MAIN 2023
01-02-2023 S1
Question
Choose the correct statement(s):
A. Beryllium oxide is purely acidic in nature.
B. Beryllium carbonate is kept in the atmosphere of CO2.
C. Beryllium sulphate is readily soluble in water.
D. Beryllium shows anomalous behavior.
Choose the correct answer from the options given below
Select the correct option:
A
A, B and C only
B
A, B and C only
C
A and B only
D
A only
✓ Correct! Well done.
✗ Incorrect. Try again or view the solution.
Solution
A. Beryllium oxide is amphoteric in nature.
B. Beryllium carbonate is kept in the atmosphere of CO2 because it is thermally less stable.
C. Beryllium sulphate is readily soluble in water due to high degree of hydration.
D.Beryllium shows anomalous behaviour due to small size, high ionization energy and high value of $\phi$ (polarising power).
Question Tags
JEE Main
Chemistry
Easy
Start Preparing for JEE with Competishun
Filters 0
JEE Main
JEE Advance
Easy
Medium
Hard
Showing 18 questions
QJEE Main 20242024
The coefficients $a, b, c$ in the quadratic equation $a x^2+b x+c=0$ are from the set $\{1,2,3,4,5,6\}$. If the probability...
JEE MainMathematicsEasy
View Solution
QJEE Main 20242024
The values of $m, n$, for which the system of equations
$...
JEE MainMathematicsEasy
View Solution
QJEE Main 20242024
Let the set $S=\{2,4,8,16, \ldots, 512\}$ be partitioned into 3 sets $\mathrm{A}, \mathrm{B}, \mathrm{C}$ with equal number of elements such...
JEE MainMathematicsEasy
View Solution
QJEE Main 20242024
Let the circle $C_1: x^2+y^2-2(x+y)+1=0$ and $C_2$ be a circle having centre at $(-1,0)$ and radius 2 . If the...
JEE MainMathematicsEasy
View Solution
QJEE Main 20242024
Let $f, \mathrm{~g}: \mathrm{R} \rightarrow \mathrm{R}$ be defined as : $f(\mathrm{x})=|\mathrm{x}-1|$ and $...
JEE MainMathematicsEasy
View Solution
QJEE Main 20242024
If the constant term in the expansion of $\left(\frac{\sqrt[5]{3}}{x}+\frac{2 x}{\sqrt[3]{5}}\right)^{12}, x \neq 0$, is $\alpha \times 2^8 \times \sqrt[5]{3}$, then...
JEE MainMathematicsEasy
View Solution
QJEE Main 20242024
Let $(\alpha, \beta, \gamma)$ be the point $(8,5,7)$ in the line $\frac{x-1}{2}=\frac{y+1}{3}=\frac{z-2}{5}$. Then $\alpha+\beta+\gamma$ is equal to
JEE MainMathematicsEasy
View Solution
QJEE Main 20242024
Let $\mathrm{A}(-1,1)$ and $\mathrm{B}(2,3)$ be two points and P be a variable point above the line $A B$ such that...
JEE MainMathematicsEasy
View Solution
QJEE Main 20242024
Consider three vectors $\vec{a}, \vec{b}, \vec{c}$. Let $|\vec{a}|=2,|\vec{b}|=3$ and $\overrightarrow{\mathrm{a}}=\overrightarrow{\mathrm{b}} \times \overrightarrow{\mathrm{c}}$. If $\alpha \in\left[0, \frac{\pi}{3}\right]$ is the angle between...
JEE MainMathematicsEasy
View Solution
QJEE Main 20242024
Let $\vec{a}=2 \hat{\imath}+5 \hat{\jmath}-\hat{k}, \vec{b}=2 \hat{\imath}-2 \hat{\jmath}+2 \hat{k}$ and $\overrightarrow{\mathrm{c}}$ be three vectors such that $(\vec{c}+\hat{\imath}) \times(\vec{a}+\vec{b}+\hat{\imath})=\vec{a} \times(\vec{c}+\hat{\imath})$. $...
JEE MainMathematicsEasy
View Solution
QJEE Main 20242024
60 words can be made using all the letters of the word BHBJO, with or without meaning. If these words...
JEE MainMathematicsEasy
View Solution
QJEE Main 20242024
The area enclosed between the curves $y=x|x|$ and $\mathrm{y}=\mathrm{x}-|\mathrm{x}|$ is :
JEE MainMathematicsEasy
View Solution
QJEE Main 20242024
Let $S_1=\{z \in C:|z| \leq 5\}, S_2=\left\{z \in C: \operatorname{Im}\left(\frac{z+1-\sqrt{3} i}{1-\sqrt{3} i}\right) \geq 0\right\}$ and $...
JEE MainMathematicsEasy
View Solution
QJEE Main 20242024
The differential equation of the family of circles passing the origin and having center at the line $\mathrm{y}=\mathrm{x}$ is :
JEE MainMathematicsEasy
View Solution
QJEE Main 20242024
Let $f:[-1,2] \rightarrow \mathrm{R}$ be given by $f(\mathrm{x})=2 \mathrm{x}^2+\mathrm{x}+\left[\mathrm{x}^2\right]-[\mathrm{x}]$, where $[\mathrm{t}]$ denotes the greatest integer less than or equal to...
JEE MainMathematicsEasy
View Solution
QJEE Main 20242024
The current in an inductor is given by I = (3t + 8) where t is in second. The magnitude...
JEE MainPhysicsEasy
View Solution
QJEE Main 20242024
A wire of resistance $20 \Omega$ is divided into 10 equal parts. A combination of two parts are connected in...
JEE MainPhysicsEasy
View Solution
QJEE Main 20242024
The maximum height reached by a projectile is 64 m. If the initial velocity is halved, the new maximum height...
JEE MainPhysicsEasy
View Solution
Check this project | Best Developer Portfolio