How many oxygen atoms are present in 0.36 g of a drop of water at STP?
Show Hint
- $6.023 \times 10^{22}$
- $1.205 \times 10^{22}$
- $6.023 \times 10^{23}$
- $1.205 \times 10^{23}$
The Correct Option is B
Solution and Explanation
Top Questions on General Chemistry
Structures of four disaccharides are given below. Among the given disaccharides, the non-reducing sugar is:
- JEE Main - 2026
- Chemistry
- General Chemistry
- The correct increasing order of spin-only magnetic moment values of the complex ions:
[MnBr4]2− (A),
[Cu(H2O)6]2+ (B),
[Ni(CN)4]2− (C), and
[Ni(H2O)6]2+ (D)
is:- JEE Main - 2026
- Chemistry
- General Chemistry
- Identify the correct statements: The presence of –NO\(_2\) group in benzene ring A. activates the ring towards electrophilic substitutions. B. deactivates the ring towards electrophilic substitutions. C. activates the ring towards nucleophilic substitutions. D. deactivates the ring towards nucleophilic substitutions. Choose the correct answer from the options given below:
- JEE Main - 2026
- Chemistry
- General Chemistry
The cyclic cations having the same number of hyperconjugation are:
- JEE Main - 2026
- Chemistry
- General Chemistry
- Want to practice more? Try solving extra ecology questions todayView All Questions
Questions Asked in WBJEE exam
Manufacturers supply a zener diode with zener voltage \( V_z=5.6\,\text{V} \) and maximum power dissipation \( P_{\max}=\frac14\,\text{W} \). This zener diode is used in the circuit shown. Calculate the minimum value of the resistance \( R_s \) so that the zener diode will not burn when the input voltage is \( V_{in}=10\,\text{V} \). 
- WBJEE - 2026
- Zener Diodes
Two charges \( +q \) and \( -q \) are placed at points \( A \) and \( B \) respectively which are at a distance \( 2L \) apart. \( C \) is the midpoint of \( AB \). The work done in moving a charge \( +Q \) along the semicircle CSD (\( W_1 \)) and along the line CBD (\( W_2 \)) are 
- WBJEE - 2026
- electrostatic potential and capacitance
