Species containing same number of electrons are called Isotopes Isobars Isoelect

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Question
Species containing same number of electrons are called
Options
A. Isotopes
B. Isobars
C. Isoelectronic
D. Isotones

Correct Answer

Isoelectronic

Chemistry problems

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3. Cutting and peeling of onion brings tears to the eyes because of the presence of _____ ?
Options
A. Amino acid
B. Sulfur
C. Carbon
D. Fat

5. Silver Mirror test is given by which one of the following compounds? 1. Benzophenone 2. Acetaldehyde 3. Acetone 4. Formaldehyde
Options
A. Only 1
B. Only 2
C. 1 and 3
D. 2 and 4

Correct Answer: 2 and 4

Explanation:

Both Formaldehyde and Acetaldehyde will give this test

$H C H O \overset{[A g (N H_{3})_{2}^{+}]}{?} \overset{A g}{S i l v e r m i r r o r} + O r g a n i c c o m p o u n d$

$C H_{3} - C H O \overset{[A g (N H_{3})_{2}^{+}]}{?} \underset{S i l v e r m i r r o r}{A g} + O r g a n i c c o m p o u n d$

6. Electron configuration of cobalt 2+?

7. Which is the gas used for making vegetables and vanaspathi from vegetable oils?
Options
A. Hydrogen
B. Nitrogen
C. Argon
D. Helium

9. The Kinetic energy of gas molecules
Options
A. is unaffected by temperature variations
B. decreases with increase of temperature
C. increases with decrease of temperature
D. increases with increase of temperature

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