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Quiz 78
Mdcat-past-papers - UHS Quiz
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Board: UHS |
1541. If carboxylic acid and ketone groups C=O are present in a chain then final name will be given as:
oxo, oic acid
Both 1 and 2
one, oic acid
None of these
1542. Acetic acid is a weak acid than sulphuric acid because of which of the following reasons?
It decomposes on increasing temperature
It has -COOH group
It has less degree of ionization
It has more inductive effect
1543. Common name of 2-hydroxy propanoic acid is:
Tartaric acid
Lactic acid
Phthalic acid
Formic acid
1544. Which product is formed by the reaction of carboxylic acid with alcohol?
Alkane
Ether
Aldehydes
Ester
1545. Which one of the following compounds act as catalyst when alcohols react with carboxylic acids?
Pt
Conc. HNO₃
Ni
Conc. H₂SO₄
1546. Select the reagent X from the following choices for this conversion:
Acidified phosphoric acid
Acidified oxalic acid
Acidified potassium hydroxide
Acidified potassium dichromate
1547. Carboxylic acids can be reduced into corresponding alcohols. Which of the following reagent can be used for this purpose?
LiAlH₄
KMnO₄
K₂Cr₂O₇
H₂SO₄
1548. Mr. Khan mixes acetic acid with thionyl chloride. Which product is obtained?
CH₃COCl + SO₂ + HCl
CH₃COOCH₃ + SO₂
CH₃Cl + CH₃COCl
CH₃Cl + SO₂ + HCl
1549. When carboxylic acid is heated with alcohol in the presence of sulphuric acid, one of the following is formed:
Amides
Acyl chloride
Esters
Lysine
1550. Kidneys perform their osmoregulatory role under the effect of Antidiuretic Hormone, which type of urine is produced in this situation?
Hypotonic urine with decreased volume
Hypotonic urine with increased volume
Hypertonic urine with decreased volume
Hypertonic urine with increased volume
1551. Which part of brain controls transition between sleeping and wakefulness?
Medulla oblongata
Cerebellum
Cerebrum
Pons
1552. Which part of the brain contains central chemoreceptors that monitor CO2 levels in blood?
Pons
Midbrain
Hypothalamus
Medulla oblongata
1553. Which component of a reflex arc connects the sensory neuron to the motor neuron within the spinal cord?
Receptor
Effector
Muscle fiber
Associative neuron
1554. The 9.3.3.1 ratio of law of independent assortment can be affected by
Genetic drift
Small population
Gene linkage
Gene duplication
1555. Best description of the process of crossing over during meiosis:
Duplication of chromosome
Exchange of genes between non-sister chromatids
Movement of chromosome to opposite poles
Separation of sister chromatids
1556. Total number of linkage groups in a normal human is:
02
23
46
92
1557. Nissis granule is a specialized structure in neuron formed by modification of:
Golgi bodies & Smooth ER
Peroxisome & Nitochondria
Lysosome & Vacuole
Ribosoma & Rough ER
1558. What is the function of a centromere?
To protect the ends of chromosomes
To hold sister chromatids together
To carry genetic information
To initiate DNA replication
1559. All are the functions of lysosome EXCEPT:
Intra cellular digestion
Removal of the waste
Autophagy
Lipid synthesis
1560. The first consequence of lymphatic blockage in tissues is:
Deficiency of oxygen
Loss of nerve signals
Drop in blood pressure
Excess fluid accumulation in tissue
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