Solve the following: 32 – (-18)
Given 32 – (-18) We know that, (-) x (-) = (+) Hence, On solving we get, 32 + 18... View Article
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Which of the following are artificial sweeteners? (A) Sodium benzoate (B) Saccharin (C) Galactose (D) Aspartame
Saccharin and Aspartame Artificial sweeteners, or sugar substitutes, are chemicals added to some foods and beverages to make them taste... View Article
An electric pole is 10 m high. A steel wire tied to top of the pole is affixed at a point on the ground to keep the pole up right. If the wire makes an angle of 45° with the horizontal through the foot of the pole, find the length of the wire.
Given, Height of the electric pole = 10 m = AB The angle made by steel wire with ground (horizontal)... View Article
Give three examples of transaction processing system
A computerised system that is useful in recording, processing, storing and validating routine transaction that take place in a business... View Article
Osmoregulation occurs in Amoeba and Paramoecium through (A) Food vacuole (B) Mitochondria (C) Nucleus (D) Contractile vacuole
Contractile vacuole Osmoregulation is the process where an organism constantly maintains osmotic pressure within its fluids. In humans and other... View Article
Balance the following equation. Also name the products formed K20 + H2O → KOH
K2O + H2O → 2KOH Potassium oxide react with water to produce potassium hydroxide. Potassium oxide is an ionic compound.... View Article
Number of radial and angular nodes in 3p orbitals respectively are (A) 1, 1 (B) 2, 1 (C) 1, 2 (D) 2, 2
We know that, Number of radial nodes = n – l – 1 Number of angular nodes = l For... View Article
Describe the lactational amenorrhea method of birth control
A natural, short term birth control method in which a woman relies on exclusive breastfeeding after birth to prevent pregnancy... View Article
Fill in the blank with the most appropriate word They ____________ football now. (A) is playing (B) plays (C) played (D) are playing
are playing Here, are playing in present continuous tense is correct since it implies an action going on at the... View Article
Which of the following atom has no neutron in its nucleus (A) Hydrogen (B) Nitrogen (C) Helium (D) Boron
The element having no neutron in the nucleus of its atom is hydrogen. Hence, the correct option is (A)
Which is the correct statement about sigma and pi molecular orbitals? Statements are (i) π bonding orbitals are ungerade (ii) π antibonding orbitals are ungerade (iii) σ antibonding orbitals are gerade (A) (i) only (B) (ii) and (iii) (C) (iii) only (D) (ii) only
(i) only As per the molecular orbital theory, π bonding orbitals are ungerade So, the correct option is (A)
The height of Doddabetta peak is __________ (A) 2537 m (B) 2637 m (C) 2737 m (D) 2837 m
2637 m Doddabetta is the highest mountain in the Nilgiri Mountains at 2,637 metres Therefore, the correct option is (B)
Credit purchase of machine is entered in purchase journal. (A) True (B) False
False Accounting and journal entry for credit purchase consists of two accounts, Creditor and Purchase. In case of a journal... View Article
What are the main constituents of blood?
Blood is a fluid connective tissue that consists of plasma, blood cells and platelets. It transports oxygen and nutrients to... View Article
Find the cube root of the following number by prime factorization method 1331
Given 1331 ∛1331 = 11 × 11 × 11 clearly ∛1331 = 11 Hence, the cube root of 1331 is... View Article
Alekh secured 50% marks in Hindi, 60% in English and 70% in Maths as well as in Science. What are his total marks if the maximum marks obtainable in each of these 4 subjects was 50?
Given Maximum marks obtained by Alekh in the four subjects is 50 Marks obtained in the subjects, Hindi = (50/100)... View Article
Grooves method is used for preparation of alkyl halides from alcohols using HX and ZnCl2. The order of reactivity is (A) HCl gt HBr gt HI (B) HI gt HBr gt HCl (C) HCl gt HI gt HBr (D) HI gt HCl gt HBr
The order of reactivity is HI gt HBr gt HCl. Hence, the correct option is (B)
In a heat engine heat energy is converted into mechanical energy (A) True (B) False
True In thermodynamics and engineering, a heat engine is a system that converts heat to mechanical energy, which can then... View Article
A body starts moving with a velocity v0 = 10 ms^-1. It experiences a retardation equal to 0.2 v^2. Its velocity after 2s is given by (A) +2 ms^-1 (B) +4 ms^-1 (C) -2 ms^-1 (D) +6 ms^-1
a = dv/dt = -0.2 v2 ⇒ 1/(-0.2v2)dv = dt \(\begin{array}{l}\int_{10}^{v}-5v^{-2}dv = \int_{0}^{2}dt\\\left [-5\times \frac{-1}{v} \right ]_{10}^{v}=\left [ t \right... View Article
17 Sep 2021: UPSC Exam Comprehensive News Analysis
Sept 17th, 2021, CNA:- Download PDF Here TABLE OF CONTENTS A. GS 1 Related B. GS 2 Related INTERNATIONAL RELATIONS... View Article
