LGS Mixed Practice Test #775

Question 1

Bowen's Reaction Series describes:

Accepted Answer

Order of mineral crystallisation from magma — Discontinuous (olivine → pyroxene → amphibole → biotite) and continuous (Ca-plagioclase → Na-plagioclase) branches. Norman L. Bowen.

Answer

Volcanic eruption

Answer

Tectonics

Answer

Weathering

Question 2

Universal donor blood group:‌​‍

Accepted Answer

O — O group.‌​‍

Answer

A

Answer

B

Answer

AB

Question 3

Which Indian English writer authored 'Midnight's Children', a Booker Prize winner in 1981?‌​‍

Accepted Answer

Salman Rushdie — Magical realism. ‌​‍Won Booker of Bookers. 'Satanic Verses' (1988) controversial — fatwa by Khomeini.

Answer

Vikram Seth

Answer

Anita Desai

Answer

R.K. Narayan

Question 4

The general formula of alkynes is:

Accepted Answer

CₙH₂ₙ₋₂ — Alkynes have one C≡C triple bond; formula CₙH₂ₙ₋₂.

Answer

CₙH₂ₙ₊₂

Answer

CₙH₂ₙ

Answer

CₙH₂ₙ₊₁

Question 5

Gestalt principles of perceptual organisation:‌​‍

Accepted Answer

Proximity, Similarity, Continuity, Closure, Figure-ground — 'Whole is more than sum of parts.' Max Wertheimer, Koffka, Köhler. ‌​‍Apparent motion (phi phenomenon).

Answer

Only colour

Answer

Random

Answer

Only one

Question 6

In a galvanic cell, the anode is the:

Accepted Answer

Negative electrode (oxidation) — In galvanic cells: anode = negative = oxidation; cathode = positive = reduction.

Answer

Positive electrode (reduction)

Answer

Salt bridge

Answer

Neutral plate

Question 7

Kerala's total rivers:

Accepted Answer

44 — 44 (41 west-flowing + 3 east-flowing).

Answer

41

Answer

50

Answer

30

Question 8

A parent in Kerala is concerned about the medium of instruction for their child in primary school, in light of recent educational policy discussions. As per NEP 2020, what is the recommended medium of instruction up to Grade 5, and preferably beyond?

Accepted Answer

C. The home language/mother tongue/local language/regional language. — NEP 2020 strongly advocates that wherever possible, the medium of instruction until at least Grade 5, but preferably till Grade 8 and beyond, should be the home language/mother tongue/local language/regional language. This approach is believed to promote better learning outcomes and cognitive development. Options A, B, and D contradict the specific emphasis on mother tongue/local language as the preferred medium of instruction in the early stages.

Answer

A. English, to ensure global competitiveness and early exposure.

Answer

B. Any scheduled Indian language, chosen by the state government based on student preference.

Answer

D. Sanskrit or classical languages, to preserve cultural heritage.

Question 9

What made the 2021 Kerala Assembly election historic?‌​‍

Accepted Answer

First time LDF retained power consecutively — Ended alternating trend.‌​‍

Answer

UDF always wins

Answer

Alternating ended

Answer

All

Question 10

Months with 31 days:‌​‍

Accepted Answer

7 — 7 months: Jan, Mar, May, Jul, Aug, Oct, Dec.‌​‍

Answer

5

Answer

6

Answer

8

LGS Mixed Practice Test #775