General Science - Online Test
Q1. Anatomy of stem differ from root in
Answer : Option B
Explaination / Solution:
The stem shows the epidermis covered with a thin layer of cuticle, narrow cuticle and each vascular bundle is conjoint, open and is endarch protoxylem.
Q2. What will be the value of pH of
Answer : Option D
Explaination / Solution:
pH= -log(cα) And Ka=
Q3. A hydrogen atom initially in the ground level absorbs a photon, which excites it to the n = 4 level. Determine the wavelength and frequency of photon
Answer : Option A
Explaination / Solution:
No Explaination.
Q4. Triticum aestivum belong to the family
Answer : Option D
Explaination / Solution:
Triticum aestivum, common or bread wheat, is an annual grass in the Poaceae (grass family) native to the Mediterranean region and southwest Asia.
Q5. The pH of ammonium acetate will be
Answer : Option A
Explaination / Solution:
is a salt of weak acid and weak base. pH= 7+ 0.5(pKa-pKb) pKa=-log(Ka) and pKb=-log(Kb) Here pKa=pKb so pH=7.
Q6. Which of the following gibberellic acid is used for malting process in brewing industry?
Answer : Option D
Explaination / Solution:
GA3 is used to speed up the malting process in brewing industry.
Q7. A solute is soluble in two immiscible liquids which are present in a mixture. The concentration of the solute in the upper layer will be
Answer : Option A
Explaination / Solution:
A solute distributes itself between two immisible liquids. Ratio of conc of solute in liquid1 and liquid 2 is constant.
Q8. Difference in export and import is known as
Answer : Option B
Explaination / Solution:
The balance of trade (BOT) is the difference between a country's imports and its exports for a given time period. The balance of trade is also referred to as the trade balance or the international trade balance.
Q9. Which one of the following pairs is wrongly matched
Answer : Option D
Explaination / Solution:
Water hyacinth develops offset for vegetative propagation. Its forms large number of branches in very short interval of time to cover the whole water bodies and depriving other aquatic organisms from oxygen dissolved in water.
Q10. Successive transitional communities will show
Answer : Option D
Explaination / Solution:
During ecological succession, transitional communities or seral communities will show increase in the number of species due to addition of nutrient medium at successive stages of succession.
