MCQ. NO.1167 | IMA
The analysis of X-ray beam by diffraction is similar to spectrum analysis carried out with a diffraction grating.
The analysis of X-ray beam by diffraction is similar to spectrum analysis carried out with a diffraction grating.
Anonymous Quiz
76%
True
24%
False
MCQ NO.1168 | IMA
The crystal used as X-ray grating has _______ dimensional lattice arrays?
The crystal used as X-ray grating has _______ dimensional lattice arrays?
Anonymous Quiz
14%
One
39%
Two
40%
Three
7%
Four
MCQ NO.1169 | IMA
Which of the following can be done to avoid loss of intensities of X-rays due to absorption of long wavelength X-rays?
Which of the following can be done to avoid loss of intensities of X-rays due to absorption of long wavelength X-rays?
Anonymous Quiz
14%
Apparatus must be contained in a chamber
51%
Air in the chamber must be replaced by helium
23%
Inert gas atmosphere must be provided
11%
Proper slits must be used
MCQ NO.1170 | IMA
In curved crystal arrangement, angular velocity of the crystal is twice that of the detector.
In curved crystal arrangement, angular velocity of the crystal is twice that of the detector.
Anonymous Quiz
76%
True
24%
False
MCQ NO.1171 | IMA
Which of the following is the disadvantage of silicon semiconductor detector?m
Which of the following is the disadvantage of silicon semiconductor detector?m
Anonymous Quiz
11%
Low stable
60%
Can be operated only at low temperatures
16%
Have low count-rate
13%
Low resolution
MCQ NO.1172 | IMA
If Hydrogen and air are used in burner how many °C temp. is produced ?
If Hydrogen and air are used in burner how many °C temp. is produced ?
Anonymous Quiz
20%
1900°C
37%
2200°C
24%
2300°C
20%
2100°C
MCQ NO. 1173 | IMA
Which is not application of flame photometry ?
Which is not application of flame photometry ?
Anonymous Quiz
16%
To estimate sodium, magnesium, calcium.
44%
Assay of metformin.
28%
Used to determine magnesium and calcium in cement.
12%
To detected metalic ions in sample.
MCQ NO.1174 | IMA
BOLTZMANN Equations is
BOLTZMANN Equations is
Anonymous Quiz
27%
N* / N =R Ae–∆E/kT
32%
N* / N = e–∆E/kT
36%
N* / N = Ae–∆E/kT
5%
N* / N = Ae–∆E/kc
MCQ NO.1175 | IMA
Choose correct sequence of flame photometry ?
Choose correct sequence of flame photometry ?
Anonymous Quiz
33%
Sample residue → excited state atoms → Return in ground state → Emission of radiation
38%
Sample residue → ground state → excited state → Emission of radiation
16%
Emission of radiation → excited state →ground state → Sample residue
13%
Sample residue → ground state → excited state → Emission of radiation
MCQ NO 1176 | Pharmaceutical engineering
Aniline is separated from aniline-water mixture using ____________.
Aniline is separated from aniline-water mixture using ____________.
Anonymous Quiz
38%
Fractional distillation
17%
Steam distillation
18%
Fractional crystallisation
27%
All of the above
MCQ NO 1177 | Pharmaceutical engineering
What type of mixture is collected in round bottom flask after passing through a steam generator?
What type of mixture is collected in round bottom flask after passing through a steam generator?
Anonymous Quiz
24%
Mixture of non-volatile organic compound and water
33%
Mixture of volatile organic compound and water
31%
Mixture of non-volatile inorganic compound and steam
13%
Mixture of volatile organic compound and steam
MCQ NO 1178 | Pharmaceutical engineering
Steam distillation process is used to separate substances which are ____________.
Steam distillation process is used to separate substances which are ____________.
Anonymous Quiz
6%
Steam volatile
37%
Steam volatile and immiscible with water
27%
Steam volatile and miscible with water
30%
All of the above
MCQ NO 1179 | Pharmaceutical engineering
When does the organic compound be present in the upper solvent layer in differential extraction?
When does the organic compound be present in the upper solvent layer in differential extraction?
Anonymous Quiz
39%
It is always present in the upper layer
27%
Before the extraction
19%
During the extraction
15%
After the extraction
MCQ NO 1180 | Pharmaceutical engineering
Which of the following property is not possessed by the organic solvent required to separate organic compound with water?
Which of the following property is not possessed by the organic solvent required to separate organic compound with water?
Anonymous Quiz
18%
It is immiscible with water
47%
Organic compound is more soluble in it
25%
It is less volatile than water
11%
It is easily vaporisable
MCQ NO 1181 | GATE 2001
In the glucuronidation reaction of OXAZEPAM-the functional group responsible is
In the glucuronidation reaction of OXAZEPAM-the functional group responsible is
Anonymous Quiz
25%
(a) OH
46%
(b) COOH
20%
(c) SH
8%
(d) NH2
MCQ NO 1182 | GATE 2001
Benzhydryl bromide when treated with 2-dimethyl amino ethanol in presence of K2CO3 gives one of the following
Benzhydryl bromide when treated with 2-dimethyl amino ethanol in presence of K2CO3 gives one of the following
Anonymous Quiz
26%
(a) 2-diphenyl ethoxy-N, N-dimethyl ethylamine
42%
(b) 2-diphenyl methoxy-N, N-diethyl ethylamine
26%
(c) 2- diphenyl methoxy-N, N-dimethyl ethylamine
6%
(d) 2-diphenyl methoxy-N, N-diethyl methylamine
MCQ NO 1183 | GATE 2001
Demeclocycline differs from Chlortetracycline only by
Demeclocycline differs from Chlortetracycline only by
Anonymous Quiz
22%
(a) Absence of methyl group on C6
49%
(c) Absence of dimethylamino group on C4
24%
(b) Absence of OH group on C6
5%
(d) Absence of OH group on C3
MCQ NO 1184 | GATE 2001
Choose the IUPAC name for Carbamazepine
Choose the IUPAC name for Carbamazepine
Anonymous Quiz
41%
(a) 5[3-(dimethylamino)ethyl] 10-11 dihydro-5H dibenz[b, f]azepine
21%
(b) 5H dibenz[b, f] azepine-5-carboxamide
20%
(c) 5H dibenz[b, f] azenpine-5-acid chloride
17%
(d) 5[3-(dimethylamino)propyl]10-11 dihydro-5H dibenz[b,f]azenpine
MCQ NO 1185 | GATE 2001
Reserpine is derived from
Reserpine is derived from
Anonymous Quiz
13%
(a) Squalene
16%
(b) Homoserine
65%
(c) Tryptophan and tryptamine
7%
(d) Asparazine
MCQ NO 1186 | GATE 2001
An alkaloid from Atropa belladone having the molecular formula C17H23O3N having -D220 when warmed with ethanolic alkaline solution is converted into
An alkaloid from Atropa belladone having the molecular formula C17H23O3N having -D220 when warmed with ethanolic alkaline solution is converted into
Anonymous Quiz
21%
(a) ( - ) Hyoscyamine
46%
(b) (+ - ) Hyoscyamine
26%
(c) ( + ) Hyoscyamine
7%
(d) ( + -) Hyoscine