Skip to content
Competishun Header
Home
Courses
Test Series
Books
Free Resources
Result
Contact Us
Free Resources
Courses
Test Series
JEE Solutions
NCERT PDF
Books
Gallery
Result
Blogs
Watch JEE Free Lectures
↗
Download Our App
↗
Follow Us
Login / Register
Back
Report
Report Issue
×
Wrong Answer
Typo Error
Image Issue
Not Clear
Other
JEE MAIN 2019
10-01-2019 S2
Question
Haemoglobin and gold sol are examples of :
Select the correct option:
A
negatively charged sols
B
positively charged sols
C
positively and negatively charged
D
negatively and positively charged sols, respectively
✓ Correct! Well done.
✗ Incorrect. Try again or view the solution.
View Solution
Solution
Haemoglobin → Positive sol Metal → Negative sol
Question Tags
JEE Main
Chemistry
Medium
Start Preparing for JEE with Competishun
YouTube
Books
App
Tests
Filters
0
Subject
▾
Exam
▾
JEE Main
JEE Advance
Difficulty
▾
Easy
Medium
Hard
Year
▾
✕ Clear All
Showing
18
questions
Q
JEE Main 2024
2024
Fuel cell, using hydrogen and oxygen as fuels,
A. has been used in spaceship
B. has as efficiency...
JEE Main
Chemistry
Easy
View Solution
→
Q
JEE Main 2024
2024
If an iron (III) complex with the formula $\left[\mathrm{Fe}\left(\mathrm{NH}_3\right)_{\mathrm{x}}(\mathrm{CN})_{\mathrm{y}}\right]^{-}$has no electron in its $\mathrm{e}_{\mathrm{g}}$ orbital, then the value of $\mathrm{x}+\mathrm{y}$...
JEE Main
Chemistry
Easy
View Solution
→
Q
Jee Main 2024
2024
Let the area of the region $\left\{(x, y): 0 \leq x \leq 3,0 \leq y \leq \min \left\{\mathrm{x}^2+2,2 \mathrm{x}+2\right\}\right\}$ be...
JEE Main
Mathematics
Medium
View Solution
→
Q
JEE Main 2024
2024
The correct order of the first ionization enthalpy is
JEE Main
Chemistry
Easy
View Solution
→
Q
JEE MAIN 2024
2024
The variance $\sigma^2$ of the data
JEE Main
Mathematics
Easy
View Solution
→
Q
Jee Main 2024
2024
If $\int_{\frac{\pi}{6}}^{\frac{\pi}{3}} \sqrt{1-\sin 2 x} d x=\alpha+\beta \sqrt{2}+\gamma \sqrt{3}$, where $\alpha, \beta$ and $\gamma$ are rational numbers, then $...
JEE Main
Mathematics
Medium
View Solution
→
Q
JEE MAIN 2024
2024
The area of the region enclosed by the parabola $(y-2)^2=x-1$, the line $x-2 y+4=0$ and the positive coordinate axes is
JEE Main
Mathematics
Easy
View Solution
→
Q
JEE MAIN 2024
2024
The number of real solutions of the equation $x\left(x^2+3|x|+5|x-1|+6|x-2|\right)=0$ is
JEE Main
Mathematics
Easy
View Solution
→
Q
Jee Main 2024
2024
Let $\mathrm{P}(\alpha, \beta)$ be a point on the parabola $\mathrm{y}^2=4 \mathrm{x}$. If P also lies on the chord of the...
JEE Main
Mathematics
Medium
View Solution
→
Q
Jee Main 2024
2024
Let for any three distinct consecutive terms $a, b, c$ of an A.P, the lines $a x+b y+c=0$ be concurrent...
JEE Main
Mathematics
Medium
View Solution
→
Q
JEE MAIN 2024
2024
In an examination of Mathematics paper, there are 20 questions of equal marks and the question paper is divided into...
JEE Main
Mathematics
Easy
View Solution
→
Q
JEE Main 2024
2024
The adsorbent used in adsorption chromatography is/are
A. silica gel B. alumina
C. quick lime D. magnesia
...
JEE Main
Chemistry
Easy
View Solution
→
Q
Jee Main 2024
2024
Let $\alpha, \beta$ be the roots of the equation $x^2-\sqrt{6} x+3=0$ such that $\operatorname{Im}(\alpha)>\operatorname{Im}(\beta)$. Let $a, b$ be integers not...
JEE Main
Mathematics
Medium
View Solution
→
Q
Jee Main 2024
2024
Let a unit vector $\hat{\mathrm{u}}=\mathrm{x} \hat{\mathrm{i}}+\mathrm{y} \hat{\mathrm{j}}+\mathrm{z} \hat{\mathrm{k}}$ make angles $\frac{\pi}{2}, \frac{\pi}{3}$ and $\frac{2 \pi}{3}$ with the vectors $...
JEE Main
Mathematics
Medium
View Solution
→
Q
JEE Main 2024
2024
Common name of Benzene-1, 2-diol is
JEE Main
Physics
Easy
View Solution
→
Q
Jee Main 2024
2024
An integer is chosen at random from the integers $1,2,3, \ldots, 50$. The probability that the chosen integer is a...
JEE Main
Mathematics
Medium
View Solution
→
Q
Jee Main 2024
2024
If $R$ is the smallest equivalence relation on the set $\{1,2,3,4\}$ such that $\{(1,2),(1,3)\} \subset R$, then the number of...
JEE Main
Mathematics
Medium
View Solution
→
Q
Jee Main 2024
2024
Let $\mathrm{y}=\log _{\mathrm{e}}\left(\frac{1-\mathrm{x}^2}{1+\mathrm{x}^2}\right),-1<\mathrm{x}<1$. Then at $\mathrm{x}=\frac{1}{2}$, the value of $225\left(y^{\prime}-y^{\prime \prime}\right)$ is equal to
JEE Main
Mathematics
Medium
View Solution
→
Load More Questions
Check this project
|
Best Developer Portfolio
Scan the code
Powered by
Joinchat
Hello 👋 Welcome to Competishun – India’s most trusted platform for JEE & NEET preparation.
Need help with JEE / NEET courses, fees, batches, test series or free study material? Chat with us now 👇
Open Chat