ClassNotes

Human-reviewed study resources for board exams, entry tests, and structured practice across notes, MCQs, flashcards, and past papers.

Support: [email protected]

Business: [email protected]

North America: +1 (512) 666-1423

Asia / MENA: +92 340 9170227

We typically reply within 3 business days.

Explore

Classes
Posts
MCQs
Flashcards
Search

Company

About
Contact
Tutors
Editorial Standards

Policies

Privacy Policy
Terms of Use
Cookie Policy
Refund Policy
Shipping Policy

© 2026 ClassNotes Inc. All rights reserved.

API Status: checking

Allen, Texas and Lahore, Pakistan. Public support pages are available for privacy, terms, cookies, refunds, shipping, and editorial standards.

Command Palette

Search for a command to run...

Shop
Tutors

s-Block Element… | NUST Entrance Test Chemistry | ClassNotes

Home
/
NUST Entrance Test
/
Chemistry
/
s-Block Elements

Set 1

Premium

MM

Mashaal Masha

Oct 20, 2022

On this page

$Li is an element of group$
$Sodium is prepared by$
$Which of the following is unstable$

Choose the correct options for the following questions.

Li is an element of group

Difficulty: Easy

A:

I-A

B:

Which of the following is unstable

C:

III-A

D:

IV-B

Sodium is prepared by

Difficulty: Easy

A:

Castner-Kellner process

B:

Down's cell

C:

Dutch's method

D:

Nelson's process

Which of the following is unstable

Difficulty: Easy

A:

\rm{Li_{2}CO_{3}}

B:

\rm{MgCO_{3}}

C:

Both A and B

D:

Both are stable

Premium content

Sign in and upgrade to continue reading.

Continue studying

posts-Block Elements - Set 2