Railway Exams (RRB) - General Science

Matter, Chemical Reactions & Periodic Classification question bank (Chemistry (Class 10 CBSE Standard))

Practice 64 free Railway Exams (RRB) - General Science Chemistry (Class 10 CBSE Standard) - Matter, Chemical Reactions & Periodic Classification questions with answers and step-by-step solutions.

Start free Book a demo

All Easy Hard Medium

Q1.

Physics (Mechanics & Energy): A train of mass $2 \times 10^5\text{ kg}$ is accelerated from rest to $20\text{ m/s}$ in 'Matter: Solid, Liquid, Gas, Plasma and Bose-Einstein Condensate'. What is the total kinetic energy gained by the train?

(A)

$4 \times 10^7\text{ Joules}$ ($KE = \frac{1}{2} m v^2 = \frac{1}{2} \times 2 \times 10^5 \times 400$) (Matter: Solid, Liquid, Gas, Plasma and Bose-Einstein Condensate)

(B)

$2 \times 10^7\text{{ Joules}}$

(C)

$8 \times 10^7\text{{ Joules}}$

(D)

$4 \times 10^6\text{{ Joules}}$

Show answer & solution

Verified Answer & Solution Locked

Q2.

Life Sciences (Physiology): Which part of the human brain controls involuntary life-support activities such as breathing, heart rate, and blood pressure in 'Matter: Solid, Liquid, Gas, Plasma and Bose-Einstein Condensate'?

(A)

Medulla oblongata (Hindbrain) (Matter: Solid, Liquid, Gas, Plasma and Bose-Einstein Condensate)

(B)

Cerebrum

(C)

Cerebellum

(D)

Hypothalamus

Show answer & solution

Verified Answer & Solution Locked

Protected Questions

Unlock All 24 Questions in Matter, Chemical Reactions & Periodic Classification

Log in or sign up free to access every question with complete solutions, create chapter practice tests, and track your performance.

Sign up free to access all 24 questions

Unlock every Matter, Chemical Reactions & Periodic Classification question, generate papers, and practice at your own pace.

Start free