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Applied Chemistry NTSE

Total questions: 28

Worksheet time: 16mins

Name
Class
Date
1.

NanoChemistry

1. Full name of SEM

a)

Scanning Enthalpy Machine

b)

Scamming Electron Microscope

c)

Scanning Electron Metals

d)

Scanning Electron Microscope

2.

By which of the following we can study nanoparticles?

a)

SEM

b)

TEM

c)

AFM

d)

SFM

3.

_______ nanoparticles can be used as active catalysts .

a)

Non-Metallic

b)

Metallic

c)

Metalloid

d)

Electron

4.

Nanoparticles are unstable when they react with _____ and is a ________ reaction.

a)

oxygen , endothermic

b)

carbon , endothermic

c)

oxygen , exothermic

d)

carbon , exothermic

5.

which of the following are the properties of Nanoparticles?

(Advanced)

a)

Large Surface Area

b)

Spatial Confinement

c)

Reduced Imperfection

d)

Low surface energy

6.

PHARMACEUTICAL CHEM

Which is the safest anaesthetic agent?

a)

NO2

b)

N2O

c)

CHCl3

d)

None of these

7.

Which acts both as an antipyretic and analgesic?

a)

Novalgin

b)

Aspirin

c)

Phenacetin

d)

Nicotine

8.

which of the following is mostly used to treat fever ? and in which drug class is it?

a)

Antibiotics , NSAIDS

b)

Antipyretics , IUPAC

c)

Antipyretics , NSAIDS

d)

Analgesics, NSAIDS

9.

Malaria is a vector-borne disease which causes physical weakness in _____ and also causes _______.

a)

pancreas , anaemia

b)

liver , anaemia

c)

stomach , anaemia

d)

small intestine , anaemia

10.

Which is the natural antimalarial obtained from Cinchona Bark ?

a)

pyrimethamine

b)

quinine

c)

chloroquine

d)

none of these

11.

The chemicals which inhibits growth or metabolism of disease-causing microorganism

a)

Antiseptics

b)

Antipyretics

c)

Antacids

d)

Antibiotics

12.

ELECTROCHEM

The conversion of chemical to electrical energy takes place in _______.

a)

Electrolytic cell

b)

Electrostatic cell

c)

Electrochemical cell

d)

Electrosytical cell

13.

True statement for redox reaction in cell?

a)

Oxidation --- Cathode

b)

Oxidation --- Anode

c)

Reduction --- Cathode

d)

Reduction --- Anode

14.

The electrolytes of half-cells are connected through a tube (salt bridge) containing _______. (Advance)

a)

saturated sugar solution

b)

unsaturated salt solution

c)

saturated salt solution

d)

unsaturated sugar solution

15.

In Electrolytic cells, when electricity is passed to the electrolyte, it dissociates into its constituent ion . this is called ____.

a)

Electrophoresis

b)

Electrosis

c)

None of the below, above

d)

Electrolysis

16.

Detection of alchol in drunken drivers is possible through electrochemical ____________.

a)

oxidation of ethanol

b)

redox reaction of methanol

c)

redox reaction of ethanol

d)

reduction of methanol

17.

RADIOCHEM

Diagnosis of Anaemia ?

a)

Cobalt - 60

b)

Iron - 59

c)

Iodine - 131

d)

Sodium - 24

18.

Detection and diagnosis of brain tumor ?

a)

Iodine - 131

b)

Sodium - 24

c)

Hydrogen - 3

d)

Cobalt - 60

19.

Uranium in ground can decompose into ______.

a)

Xenon

b)

Promethium

c)

Plutonium

d)

Radon

20.

Treatment used for cancer ?

a)

Gold - 198

b)

Iodine - 131

c)

Phosphorus - 32

d)

Cobalt - 60

21.

DYE Chem

Mordant Dyes have a poor affinity for _____.

a)

silk fabrics

b)

cotton fabrics

c)

synthetic fabrics

d)

wool fabric

22.

Which of the following are VAT dyes not used for ?

a)

Silk

b)

Wool

c)

Cotton

d)

All of the above

23.

organic compounds used as colourants ?

a)

Dyes

b)

Mordant

c)

Aromatics

d)

None of the above

24.

Which of the following are used as mordants?

a)

AL

b)

FE

c)

Cr

d)

Mg

25.

NPK ?

a)

Nitrogen , Phosphorus , Preasium

b)

Nickel, Promethium , Krypton

c)

Nihonium , Plutonium , Kallium

d)

Nitrogen , Phosphorus , Potassium

26.

FORENSIC

Occult Fingerprints are sometimes made visible by ?

a)

Perspirin

b)

Chloromycin

c)

Ninhydrin

d)

Presothium

27.

_______ fumes from glue are used with fluroscent dyesto make fingerprints visible?

a)

Cyanoacrylate Ester

b)

Propyl Halide

c)

Diethyl Ester

d)

Perspirin

28.

ADVANCE

Drunk driver is made to blow through a solution of

Clue : (Multiple answer)

a)

Sulphuric Acid

b)

Potassium Dichromate

c)

Silver acetate

d)

Silver Nitrate