General Science - Online Test
Q1. A particular ratio of product to reactant helps in predicting the direction in which a given reaction will proceed at any stage. is called
Answer : Option C
Explaination / Solution:
Reaction Quoitennt (Q) =K ( equilibrium) Q>K (backward Reaction) Q
Q2. One of the following hassweet taste
Answer : Option A
Explaination / Solution:
Glucose, glycine have sweet taste.
Q3. Jute fibers deteriorate because they have
Answer : Option A
Explaination / Solution:
Jute fibers are made of high amount of lignin that deteriorate in presence of high moisture and water,
Q4. Mathematically arithmetic growth is expressed as
Answer : Option C
Explaination / Solution:
Arithmetic growth is represented by where Lt is final growth, Lo is initial size and rt is the rate of growth and time respectively.
Q5. Fluorescence is
Answer : Option B
Explaination / Solution:
No Explaination.
Q6. A virus differ from a bacterium as it contains
Answer : Option B
Explaination / Solution:
Virus differs from bacteria in terms of having DNA or RNA as genetic material with no ribosomes. Virus can replicate inside the host cell but become inactive outside the host cell.
Q7. Stem cutting is used in the propagation of
Answer : Option C
Explaination / Solution:
Stem cutting is a mode of vegetative propagation in which stem is cut into pieces having at least one node. From the node new plantlet emerge out. Mango and cotton are grown by seeds and Banana by root cutting.
Q8. The preparation of alkynes from vicinal dihalides is an example of---------- ?
Answer : Option C
Explaination / Solution:
Elimination reaction is a type of organic reaction in which two substituents are removed from a molecule in either one or two steps .When the starting dihalide is a vicinal dihalide , alkyne is obtained by two successive elimination reactions.
Example :
Vicinal dihalide, on treatment with forms a monosubstituted alkene Vinyl bromidewhich when reacted with sodium amide , forms ethyne (ie. an alkyne ). The steps of conversion are ,
Q9. The molal depression constant depends upon
Answer : Option B
Explaination / Solution:
Kf is characteristic of solvent.
Q10. Define GDP
Answer : Option B
Explaination / Solution:
GDP also known as Gross Domestic Product refers to the market value of final goods and services produced within the domestic territory of a country during the period of an accounting year, inclusive of depreciation.
