Description : Toxicity of Mg can be modified by adding ________: a. N b. PO4 c. Ca d. K2O
Last Answer : Ca
Description : Addition of __________ hastens the time of fruit bud differentiation in fruit plants: a. Nitrites b. Nitrides c. Nitrates d. All of these
Last Answer : Nitrates
Description : Consider the following statements: 1. Carbonate hardness is due to bicarbonates. 2. Non-carbonate hardness is due to sulphates and chlorides of Ca and Mg. 3. Both the hardnesses can be removed by lime-soda method. 4. Both the hardnesses can be ... (b) 1, 2 & 4 only (c) 2, 3 & 4 only (d) 1, 2, 3 & 4
Last Answer : (a) 1, 2 & 3 only
Description : Agglomeration of individual particles into clusters (flocs) is called flocculation. To prevent flocculation, the most commonly used dispersing agents are (A) Carbonates (B) Sulphates (C) Silicates & phosphates (D) Bi-carbonates
Last Answer : (C) Silicates & phosphates
Description : __________ are used as corrosion inhibitor for iron & steel in aqueous solutions. (A) Phosphates (B) Chromates (C) Sulphates (D) Bi-carbonates
Last Answer : (B) Chromates
Description : Magnesium and calcium __________ cause temporary hardness of water. (A) Carbonates (B) Bicarbonates (C) Phosphates (D) Sulphates
Last Answer : (B) Bicarbonates
Description : Permanent hardness of water, due to sulphates of the metal, can be destroyed by the use of (1) Nitrates (2) Zeolites (3) Sulphonates (4) None of these
Last Answer : (2) Zeolites Explanation: Zeolites are crystalline solids structures made of silicon, aluminum and oxygen that form a framework with cavities and channels inside where cations, water and/or small molecules may reside.
Description : Oxidation process results in the formation of A. Carbon dioxide B. Nitrates C. Sulphates D. All the above
Last Answer : ANS: D
Description : Hardness of water can be removed by boiling if it is due to (A) Calcium bicarbonates (B) Calcium sulphates (C) Calcium chloride (D) Calcium nitrates
Last Answer : (A) Calcium bicarbonates
Description : Which of the following is a primary pollutant in atmospheric air? A. Cl2 B. SO3 C. Nitrates D. Sulphates
Last Answer : A. Cl2
Description : Release of phosphates and nitrates in water bodies like lakes lead to:
Last Answer : Release of phosphates and nitrates in water bodies like lakes lead to: A. Nutrient enrichment ... algal growth D. Increased growth of decomposers
Description : What role have nitrates and phosphates played in damaging muddy creek?
Last Answer : Need answer
Description : Nitrates are absorbed at pH below ___________: a. 5 b. 6 c. 7 d. 8
Last Answer : 5
Description : Though nitrates and calcium channel blockers are both vasodilators, they are used concurrently in angina pectoris, because: A. They antagonise each other's side effects B. Nitrates primarily ... primarily reduce after-load C. Nitrates increase coronary flow while calcium channel blockers reduce ca
Last Answer : B. Nitrates primarily reduce preload while calcium channel blockers primarily reduce after-load
Description : Presence of sodium tripolyphosphate (an additive) in synthetic detergent (A) Facilitates its use even in hard water (by sequestering the waterhardening Ca & Mg ions) (B) Inhibits its corrosive effects (C) Does not allow redeposition of dirt on the cleaned surface (D) None of thes
Last Answer : (A) Facilitates its use even in hard water (by sequestering the waterhardening Ca & Mg ions)
Description : Ammonia is excreted as ammonium salts during metabolic acidosis but the majority is excreted as (A) Phosphates (B) Creatine (C) Uric acid (D) Urea
Last Answer : Answer : D
Description : Addition of pozzolana to ordinary port land cement, causes (A) Decrease in early strength (B) Reduction in chemical action with sulphates (C) Increase in shrinkage (D) All the above
Last Answer : Answer: Option D
Description : Bloosom end rot of tomato is due to a. Infection/disease b. Boron/ Ca. deficiency c. Insect attack d. Nutritional deficiency
Last Answer : Boron/ Ca. deficiency
Description : Which one is not an appropriate approach to control frost? a. Avoidance b. Reduction of heat loss c. Addition of heat d. Transmittance of control
Last Answer : Avoidance
Description : Which of the following is a balanced fertilizer for plants? (a) Urea (b) Ammonia sulphate (c) Nitrates (d) Compost
Last Answer : Ans:(d)
Description : Higher plants take up nitrogen as (a) Nitrites only (b) Nitrates only (c) Nitrates and ammonia (d) Urea
Last Answer : Ans:(c)
Description : Plants absorb dissolved nitrates from soil and convert them into (a) Free nitrogen (b) Urea (c) Ammonia (d) Proteins
Last Answer : Ans:(a)
Description : Biofertilizers convert nitrogen to (1) nitrates (2) ammonia (3) nitrogenase (4) amino acids
Last Answer : (2) ammonia Explanation: Bio-fertilizers are microorganisms which bring about nutrient enrichment of soil by enhancing the availability of nutrients to crops. The micro-organisms which act as bio ... bacteria convert free nitrogen to ammonia, which the host plant utilizes for its development.
Description : If the sewage is fully oxidized, the nitrogen is in the form of – (1) Nitrites (2) Ammonia (3) Nitramines (4) Nitrates
Last Answer : (4) Nitrates Explanation: Oxidized forms of nitrogen include nitrite (NO2) and nitrate (NO3). Nitrogen mainly occurs in wastewater in this form. Because nitrite is easily oxidized to nitrate, nitrate is the compound predominantly found in groundwater and surface waters.
Description : In sewage having fully oxidised organic matter, the nitrogen exists in the form of A. Nitrites B. Nitrates C. Free ammonia D. Aluminoid nitrogen
Last Answer : ANS: B
Description : In very first stage of decomposition of the organic matter in sewage A. Nitrites are formed B. Nitrates are formed C. Carbondioxide is formed D. Ammonia is formed
Description : Nitrogen cycle of sewage, is A. Liberation of ammonia-formation of nitrites-formation of nitratesliberation of nitrogen B. Liberation of nitrogen-liberation of ammonia-formation of ... of ammonia D. Formation of nitrates-formation of nitrites-liberation of nitratesliberation of nitrates
Last Answer : ANS: A
Description : A well oxidized sewage contains nitrogen mainly as A. Nitrates B. Nitrites C. Free ammonia D. None of these
Description : Nitrifying bacteria (a) oxidise ammonia to nitrates (b) convert free nitrogen to nitrogen compounds (c) convert proteins into ammonia (d) reduce nitrates to free nitrogen.
Last Answer : (a) oxidise ammonia to nitrates
Description : Biofertilizers convert nitrogen to _______ . (1) nitrates (2) ammonia (3) nitrogenase (4) amino acids
Last Answer : ammonia
Description : If the sewage is fully oxidized, the nitrogen is in the form of (1) Nitrites (2) Ammonia (3) Nitramines (4) Nitrates
Description : addition of phophates and nitrates/fertilizers into water leads to
Last Answer : addition of phophates and nitrates/fertilizers into water leads to A. Increased grwoth of ... algal growth D. Nutrient enrichment/eutrophication .
Description : Apical bud becomes ________ in mango at fruit bud differentiation : a. Flattened b. Rounded c. Dome shaped d. Elongated
Last Answer : Dome shaped
Description : At a temperature slightly above optimum, carbohydrates are ________: a. Produced b. Stored c. Utilized d. Increased
Last Answer : Utilized
Description : Temperate varieties of carrot have ________ life cycle. a. Annual b. Biennial c. Perennial d. Unknown
Last Answer : Biennial
Description : ________ can release lateral buds from apical dominance : a. Auxins b. Gibberellins c. Kinins d. None of above
Last Answer : Kinins
Description : ________ have ability to alter the sex of the flowers: a. Auxins b. Gibberellins c. Kinins d. None of above
Last Answer : Gibberellins
Description : Lower temperature than normal convert male flowers into perfect flowers in ________: a. Date palm b. Mango c. Papaya d. Citrus
Last Answer : Papaya
Description : Permanent hardness of water is due to the presence of calcium & magnesium (A) Bi-carbonates (B) Sulphates & chlorides (C) Carbonate (D) None of these
Last Answer : (B) Sulphates & chlorides
Description : Lime and soda ash are added to water to remove (A) Bicarbonates & sulphates of calcium and magnesium (B) Undesirable taste and odour (C) Bacteria (D) Its corrosiveness
Last Answer : (A) Bicarbonates & sulphates of calcium and magnesium
Description : Though nitrates and calcium channel blockers are both vasodilators, they are used concurrently in angina pectoris because (a) They antagonize each other's side effects (b) Nitrates primarily reduce preload while calcium ... load (c) Nitrates increase coronary flow while calcium (d) Both (b) and (c)
Last Answer : Ans: B
Description : How is the mining activity injurious to the health of the miners and environment ? Explain. -SST 10th
Last Answer : 'Mining is injurious to miners and environment because: 1. The dust and noxious fumes from the mining areas can cause pulmonary diseases for those inhaling it. 2. There's a constant risk of collapsing mine ... area. 3. The water sources in the area get polluted due to mining and dumping of waste.
Description : How is the mining activity injurious to the health of the miners and environment? Explain. -SST 10th
Last Answer : Mining activity is often called a killer industry due to high risks involved. The dust and poisonous fumes inhaled by the miners expose them to pulmonary diseases.The risk of collapsing mine roofs, ... to mining. Dumping of waste and slurry leads to degradation of land, soil and river pollution.
Description : Is drinking too much tea injurious for health?
Last Answer : when you drink so much fluids it gets dangerous for kidneys, so that includes tea too, that said drink just water can be risky, now add some herbs an d you get a double trouble, take care, nothing excesive all with measure
Description : Transmission by post of anything injurious post of tickets, proposals, etc., relating to unauthorized lotteries prohibited is explained in a) Section 18 b) Section 19,19A c) Section 20 d) None of these
Last Answer : b) Section 19,19A
Description : 2,4-D is injurious to a). Cotton b). Mustard c). Chickpea d). All
Last Answer : d). All
Description : Tobacco smoke is injurious to health because it contains : (1) Carbon monoxide (2) Nicotine (3) Polycyclic aromatic hydrocarbons (4) Melathene
Last Answer : Carbon monoxide
Description : The principles of antihypertensive drug usage enunciated in JNC VI and WHO-ISH guidelines include the following except: A. Therapy for grade I and II hypertension should be initiated with a single drug ... initially fails to lower BP, it should be replaced by a drug/combination from another class
Last Answer : C. All subjects with BP higher than 140/90 mmHg should be put on antihypertensive medication immediately
Description : Elevation of temperate region from sea level ranges: a. 1000-2000 m b. 2500-3000 m c. 3500-4000 m d. b & c
Last Answer : b & c
Description : CRD is a statistical approach for: a. Field experiment b. Laboratory experiment c. a & b d. None
Last Answer : Laboratory experiment