APPSC Chemistry 15 March 2020 Question Paper with Answers Key

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APPSC Chemistry 15 March 2020 Question paper with Answers Key- APPSC conducted Lecturers in Government Polytechnic Colleges (Engineering and Non-Engineering) in A.P Technical Education Service exam on 15 March 2020 FN from 10.00 AM to 12.30 PM. Here we are providing some of the questions asked in APPSC Chemistry Paper.

In enzyme catalysis turnover number is?

Maximum number of substrate molecules converted as products by an enzyme molecule per unit time (max.rate/ [enzyme])

Which is unaffected in catalysis?

Equilibrium constant

Isosteric enthalpy of adsorption is?

Standard enthalpy of adsorption at fixed surface.

The adsorption isotherm useful for multi-layer adsorption is?

BET isotherm equation

The plot of pressure v/s temperature foe a given adsorption is called?

Adsorption isostere.

APPSC Chemistry 15 March 2020 Paper

The cold light emission of a glow worm is?

Chemiluminescence.

Which is non-radiative transition?

Inter system Crossing

Which gaseshas least of van der waals constant ‘a’?

Helium

Paulis exclusion principle is applicable for?

Bosons

Which is a linear operator?

d/dx

Terrestrial photogrammetry is taking photographs of?

The terrain of the earth from cameras on ground

The element with atomic number 118 as per electronic configuration in periodic table is?

Noble gas

The most dense element among all elements is?

Osmium

The elements named after living persons are?

Organasson- 118 and Seaborgium-106

The reactive position of nicotinamide adenine dinucleotide (NAD) in biological redox reactions is?

4-poisition of the pyridine ring

Which of the sugars mentioned in the options would undergo mutarotation?

2,3,4,6-tetra-O-methyl-D-mannopyranoside.

Chemistry

APPSC Chemistry 15 March 2020 Questions and answers

The commutator of [x,d/dx] is?

-1

Which is used in thermonuclear (hydrogen bomb) bomb?

LID

The nuclear liquid drop model was developed by?

Neils Bohr and J Wheeler

The molecule which does NOT show ESR spectrum is?

He

The oxygen – consuming unit in respiration cytochrome-c contains which metals in active site?

Fe and Cu.

APPSC Chemistry 15 March 2020 paper with Key

The commutator of [x,d/dx] is?

-1

Which is used in thermonuclear (hydrogen bomb) bomb?

LID

The nuclear liquid drop model was developed by?

Neils Bohr and J Wheeler

The molecule which does NOT show ESR spectrum is?

He

The oxygen – consuming unit in respiration cytochrome-c contains which metals in active site?

Fe and Cu.

APPSC Chemistry Answers Key 15 March 2020

The platinum complex used to treat cancer is?

Cis-Platin

Which is least reactive in alkali metals?

Li

The repeating unit in phosphazines is?

-PX2N- (X=halogen).

The molecule with C2v symmetric is?

BrF3

Which group molecular orbitals is ungerade?

II2p

APPSC Chemistry 15 March 2020 Full Question Paper & Key

 

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