Description : Which one of the following element is mobile in plants but immobile in soil ? (A) Sulphur (B) Zinc (C) Boron (D) Phosphorus
Last Answer : (D) Phosphorus
Description : Immobile element in soil is
Last Answer : Ans. Phosphorus
Description : The most deficient micro – nutrient in Indian soil is : (A)Cu (B) Mn (C) Zn (D) B
Last Answer : (C) Zn
Description : Khaira disease in rice is due to the deficiency of (A) Boron (B) Mn (C)S (D) Zn
Last Answer : (D) Zn
Description : Immobile element in plant is
Last Answer : Ans. Calcium
Description : Disease caused by Zn deficiency is (A) Khaira (B) Mosaic (C) Die-back (D) Whip tail
Last Answer : (A) Khaira
Description : Phosphorus is generally fixed in acid soils in the form of— (A) Calcium Phosphate (B) Zn Phosphate (C) Aluminium Phosphate (D) None of these
Last Answer : (C) Aluminium Phosphate
Description : ‘Little leaf’ and ‘rosette’ of apple, ‘white bud’ of maize are the deficiency symptoms of (a) Fe (b) Zn (c) Cl (d) Mo
Last Answer : (b) Zn
Description : Soils with high pH are generally deficient in:? a Zn and Mn b B and Fe c Cu and Mo d Ca and Mg
Last Answer : a Zn and Mn
Description : Yellow leaf of citrus is due to def of ? a Mo b Zn c Mn d N
Last Answer : a Mo
Description : Which of the following elements is most mobile in soil ? (A) Ca (B) K (C) Mg (D) N
Last Answer : (D) N
Description : Which of the following elements is not essential element of plants but proves to be beneficial for some plants? a) Boron b) Sodium c) Iodine d) Copper
Last Answer : b) Sodium
Description : Which of the following elements is not essential element of plants but proves to be beneficial for some plants?a) Boron b) Sodium c) Iodine d) Copper
Description : What could be an effective calling device at home for someone who is immobile and has a tracheostomy tube?
Last Answer : Look for a set of Power line Communication system intercoms. They used to sell a set of 3 for $25 at Radioshock They work great. I have one in my basement one in the barn and one in the garage. ... been working for 30 years. No internet required! Just plug them into the wall and you are good to go.
Description : My thumb is swollen, red and immobile. It's also oddly hard to touch. What should I do?
Last Answer : Sound like a fracture. Get an X-Ray.
Description : Deficiency symptom of relatively immobile elements (e.g. Ca) first appear in
Last Answer : Deficiency symptom of relatively immobile elements (e.g. Ca) first appear in
Description : Organic carbon is a measure of? A. Available N in soil B. Available P in soil C. Available K in soil D. Available Mg in soil
Last Answer : A. Available N in soil
Description : Maize grow very well in the soil in p H ranging from (a) 4.5- 6.5 (b) 6- 8.5 (c) 5.5 – 7.5 (d) 7.5 – 8.5
Last Answer : (c) 5.5 – 7.5
Description : Plants absorb phosphorus in the form of (A) H2PO4 (B) PO4 (C) SSP (D) P
Last Answer : (A) H2PO4
Description : The inherent capacity of soil to provide essential chemical elements for the growth of plants is termed as – a. Soil Productivity b. Soil Fertility c. Soil capacity d. Soil flexibility e. Soil Utility
Last Answer : b. Soil Fertility
Description : Which mineral element controls the activity of Nitrate reductase ? (A) Fe (B) Mo (C) Zn (D) Ca
Last Answer : Answer : A
Description : Element necessary for the middle lamella is (a) Ca (b) Zn (c) K (d) Cu.
Last Answer : (a) Ca
Description : Which element is macronutrient? a. Mo b. Mn c. Zn d. Ca
Last Answer : d. Ca
Description : The first Director General of ICAR (A) Dr. B. P. Paul (B) Dr. R. S. Paroda (C) Dr. M.S. Swaminathan (D) Dr. B. Vishwanath
Last Answer : (A) Dr. B. P. Paul
Description : Why gypsum is used in crop of mustard ? (A) For supplying sulphur (s) (B) For supplying N (C) For supplying Fe (D) For supplying P
Last Answer : (A) For supplying sulphur (s)
Description : Which of the following phosphatic fertilizer is useful in groundnut crop ? (A) D.A.P. (B) Rock Phosphate (C) Triple Super-Phosphate (TSP) (D) Single Super Phosphate (S.S.P.)
Last Answer : (D) Single Super Phosphate (S.S.P.)
Description : Who is known as the ‘Father of White Revolution’ in India? a. P Pal b. Kurien c. S Swaminathan d. N.Bahal e. None of these
Last Answer : b. Kurien
Description : Lime and dolomite are common source of — in soil. a. N b. Ca c. Zn d. K
Last Answer : b. Ca
Description : The scheme of mobile food testing laboratory called “Food safety on wheel”has been rolled out by a.ICAR b.FSSAI c.NABARD d.AGMARK
Last Answer : b.FSSAI
Description : What is the name of citizen centric mobile app on MGNREGA launched by department of rural development for providing information of the MGNREGA program? a. Meri Sadak b. Jai MGNREGA c. E-MGNREGA d. Jan MGNREGA
Last Answer : b. Jai MGNREGA
Description : Which one of the following elements is almost non- essential for plants? (a) Zn (b) Na (c) Ca (d) Mo
Last Answer : (b) Na
Description : Plants take zinc in the form of (a) ZnSO4 (b) Zn++ (c) ZnO (d) Zn.
Last Answer : (b) Zn++
Description : Which element is involved in biosynthesis of IAA ? (A) Nitrogen (B) Boron (C) Zinc (D) Copper
Last Answer : (C) Zinc
Description : Which one of the following element is a constituent of protoplasm? (A) Sulphur (B) Calcium (C) Iron (D) Potassium
Last Answer : (B) Calcium
Description : Element of Communication is— (A) Message (B) Feedback (C) Channel (D) All of these
Last Answer : (D) All of these
Description : The deficiency of this element leads to older leaves turning purple in colour on the underside. Identify the mineral? [a] Calcium [b] Phosphorus [c] Potassium [d] Iron [e] None of the above
Last Answer : [c] Potassium
Description : Which is the second most abundant element of the earth crust? a Oxygen b Nitrogen c Aluminium d Silicon e Calcium
Last Answer : c Aluminium
Description : Although a deficiency of any one of the elements listed may result in chlorosis, only one of these elements is an element found in chlorophyll. Which is it?(a) Zinc (b) Iron (c) Magnesium (d) Chloride
Last Answer : (c) Magnesium
Description : (a) What are fuel cells? Explain the electrode reactions involved in the working of H2 – O2 fuel cell. (b) Represent the galvanic cell in which the reaction Zn (s) + Cu2+ (aq) → Zn2+ (aq) + Cu (s) takes place. -Chemistry
Last Answer : (a) Fuel cells : These cells are the devices which convert the energy produced during combustion of fuels like H2, CH4, etc. directly into electrical energy. The electrode reaction for H2 – O2 fuel cell : (b) The galvanic cell may be represented as Zn (s) | Zn2+ (1M) || Cu2+ (1M) | Cu (s)
Description : Identify the type of reaction(s) in the following equations. (i)CH4 + 2O2 CO2 + 2 H2O (ii) Pb(NO3)2 + 2KI ——–>Pbl2 + 2KNOs (iii) CaO + H2O ——–> Ca(OH)2 (iv) CuSO4 + Zn ——–> ZnSO4 + Cu -Chemistry
Last Answer : Answer. (i) Combustion reaction and oxidation reaction. (ii)Double displacement reaction and precipitation reaction. (iii) Combination reaction. (iv) Displacement reaction.
Description : Diamond structure can be considered as ZnS (Zinc blend) structure in which each `Zn^(2+)` in alternate tetrahedral void and `S^(2-)` in cubic close pa
Last Answer : Diamond structure can be considered as ZnS (Zinc blend) structure in which each `Zn^(2+)` in alternate tetrahedral void ... . 6.92 Å C. 1.73 Å D. 3 Å
Description : Assertion :- `Zn(s)+Cu^(+2)(aq)rarr Zn^(+2)(aq)+Cu(s)` can be spilt into following half reactions `{:(Zn(s)rarrZn^(+2)+2e^(-),),(,"(Oxidation half rea
Last Answer : Assertion :- `Zn(s)+Cu^(+2)(aq)rarr Zn^(+2)(aq)+Cu(s)` can be spilt into following half ... Reason is False. D. If both Assertion & Reason are False.
Description : Assertion :- In the reaction `Zn(s)+cu^(+2)(aq)rarrZn^(+2)(aq)+Cu(s)` `Cu^(+2)` ions act as oxidising agent and Zn atoms act as a reducing agent. Reas
Last Answer : Assertion :- In the reaction `Zn(s)+cu^(+2)(aq)rarrZn^(+2)(aq)+Cu(s)` `Cu^(+2)` ions ... the Reason is False. D. If both Assertion & Reason are False.
Description : Which of the following anions are producing same gas on treatment with `(Zn+ " dil." H_(2)SO_(4))`. `I :SO_(3)^(2-) " " II : HSO_(3)^(-) " " III : S^(
Last Answer : Which of the following anions are producing same gas on treatment with `(Zn+ " dil." H_(2)SO_(4))`. `I : ... I, II, III and IV D. I, III and IV only
Description : `Ag_(2)S +NaCN rarr (a)` (a) `+Zn rarr (d)` (b) is a metal. Hence `(a)` and `(b)` are
Last Answer : `Ag_(2)S +NaCN rarr (a)` (a) `+Zn rarr (d)` (b) is a metal. Hence `(a)` and `(b)` are A. `Na_(2)[Zn( ... )[Ag(CN)_(4)],Ag` D. `Na_(3)[Ag(CN)_(4)],Ag`
Description : As the surface area of the Zn(s) used in the reaction Zn(s) + 2HCl(aq)--> ZnCl2(aq) + H2(g) is increased, the rate of the reaction willIncreaseDecreaseRemain the Same?
Last Answer : An increase in surface area means an increase in the rate of reaction.
Description : Which of the following produces H2 gas, when reacts with acid? (1) Zn (2) S (3) C (4) O
Last Answer : (1) Zn Explanation: As, Zinc is a metal so it will produce H2 gas when reacts with acid. Active metals react with acids to produce hydrogen because they are above hydrogen in the activity series.
Description : What information do you get from the following chemical equation: Zn(s) + 2HCl (dil) → ZnCl2 (aq) + H2(g)
Last Answer : This gives zinc chloride and hydrogen. The word equation is: Zinc + Hydrochloric acid → Zinc chloride + Hydrogen Formulae for the products are ZnCl2 and H2
Description : Which state contributes maximum pulse production? (A) U. P. (B) M.P. (C) Punjab (D) Maharastra
Last Answer : (B) M.P.
Description : Red and purple colour of maize (Zea Mays) is due to deficiency of (A) Ca (B) N (C)F (D) P
Last Answer : (D) P