Title Copy of Answer Chemistry অনুশীলনী (09.08.25).pdf ✅

4 34. BHA-Gi c~Y©iƒc Kx? A) Butylated hydroxy anisole B) Butylated hydroxy acetate C) Butylated hydroxy agar D) Butylated hydroxy amine DËi : A) e ̈vL ̈v BHA- Butylated hydroxy anisole. BHT : Butylated hydroxy toluene; TBHQ : Tertiary butyl hydroquinone. [nvRvix m ̈vi] 35. ‰Zj I Pwe©hy3 Lv` ̈‡K msiÿ‡Y †KvbwU e ̈eüZ nq? A) BHA B) BTA C) EDTA D) BAH DËi : A) e ̈vL ̈v BHAGi Aby‡gvw`Z gvÎv100 ppm. [nvRvix m ̈vi] 36. `ya n‡”Q- wb‡Pi †KvbwU? A) †Rj B) Bgvjkb C) mvm‡cbkb D) mj DËi : B) e ̈vL ̈v Bgvjkb: `ya, wμg, k ̈v¤úy BZ ̈vw`| Bgvjkb GK cÖKvi Kj‡qW| [nvRvix m ̈vi] 37. `y‡ai cÖavb †cÖvwUb †KvbwU? A) K ̈v‡ivwUb B) wjwcW C) K ̈vwmb D) j ̈vKUvjeywgb DËi : C) e ̈vL ̈v `y‡a wZb †kÖwYi †cÖvwUb _v‡K| †hgb : K. K ̈vwmb, L. j ̈vK&Uvjeywgb M. j ̈vK&‡Uv †Møveywjb| jvwK K ̈vwRb ↓ ↓ j ̈vKUvjeywgb I j ̈vK‡Uv †Møveywjb; K ̈vwmb (†mivg / †nv‡q †cÖvwUb) [nvRvix m ̈vi] 38. `y‡a wb‡Pi †Kvb Avqbmg~‡ni †mUwU AwaK cwigv‡Y _v‡K? A) K + , Ca2+, Cl– B) Ca2+, Mg2+, Fe3+ C) K + , Cu2+, P3– D) Na+ , K+ , Cl– DËi : A) e ̈vL ̈v `y‡a AwaK cwigvY K + , Ca2+ I dmdivm _v‡K `y‡a Lye Kg cwigvY †jvnv I Kcvi _v‡K| [nvRvix m ̈vi] 39. wb‡Pi †Kvb cÖvYxi `y‡a j ̈vK‡UvR wPwbi cwigvY me‡P‡q †ewk _v‡K? A) gvbyl B) gwnl C) Miæ D) QvMj DËi : A) e ̈vL ̈v wewfbœ cÖvYxi `y‡a j ̈vK‡UvR wPwbi cwigvY: gvbyl- 7.1% gwnl- 5.5% Miæ- 4.8% QvMj- 4.8% [nvRvix m ̈vi] 40. msM„nxZ `y‡ai pH wbqš¿‡Yi Rb ̈ wb‡Pi †KvbwU wgkv‡bv nq? A) NaHCO3 B) H2O2 C) NaCl D) NH3 DËi : A) e ̈vL ̈v hw` pH Gi gvb 6.5Gi Kg nq, ZLb Aí cwigvY NaHCO3 A_ev Na2CO3 `aeY †hvM K‡i `y‡ai pH gvb‡K 6.6-6.9 Gi g‡a ̈ ivLv nq| [nvRvix m ̈vi] 41. mvm‡cbk‡bi D`vniY †KvbwU? A) K`©gv3 gvwU B) wPwbi `aeY C) `ya D) i3 DËi : D) e ̈vL ̈v mvm‡cbkb Gi D`vniY: i3, K‡jiv f ̈vKwmb, cvwb‡Z Kv`vi wgkÖY, cvwb‡Z gq`vi wgkÖY, A‡š¿i B‡gwRs Kv‡R e ̈eüZ, BaSO4 wgkÖY| [nvRvix m ̈vi] 42. A‡š¿i B‡gwRs Kv‡R e ̈eüZ BaSO4 wgkÖY wb‡Pi †Kvb †kÖwYfz3? A) Kj‡qW B) mvm‡cbkb C) ‡Kvqv ̧‡j›U D) Aat‡ÿc DËi : B) e ̈vL ̈v mvm‡cbkb Gi D`vniY: i3, K‡jiv f ̈vKwmb, cvwb‡Z Kv`vi wgkÖY, cvwb‡Z gq`vi wgkÖY, A‡š¿i B‡gwRs Kv‡R e ̈eüZ, BaSO4 wgkÖY| [nvRvix m ̈vi] 43. U ̈vjKg cvDWvi cÖ ̄`wZi g~j Dcv`vb †KvbwU? A) 3MgO.4SiO2.H2O B) Na2B4O7.10H2O C) C3H8O3 D) CaCO3.MgCO3 DËi : A) e ̈vL ̈v ‡UjK Gi ivmvqwbK ms‡KZ: 3MgO.4SiO2.H2O ev H2Mg3(SiO3)4 ev Mg3Si4O10(OH)2 [nvRvix m ̈vi] 44. MuvRb cÖwμqvq †Kvb cwieZ©b m¤úbœ nq? A) Møy‡KvR †_‡K B_vbj B) my‡μvR †_‡K Møy‡KvR C) B_vbj †_‡K A ̈vwmwUK GwmW D) B_vb ̈vj †_‡K A ̈vwmwUK GwmW DËi : A) e ̈vL ̈v MuvRb cÖwμqvi Møy‡KvR †_‡K B_vbj ˆZwi Kiv hvq| [nvRvix m ̈vi] 45. gë wf‡bMvi cÖ ̄`wZ‡Z my‡μv‡Ri Av`a©we‡køl‡Y †Kvb GbRvBg e ̈eüZ nq? A) Wvqv‡÷R B) RvB‡gR C) g ̈v‡ëR D) Bbfv‡U©R DËi : D) e ̈vL ̈v my‡μv‡Ri Av`a© we‡køl‡Y e ̈eüZ GbRvBg-Bbfv‡U©R| C12H22O11 + H2O Bbfvi‡Um → C6H12O6 + C6H12O6 370C [Møy‡KvR + d«z‡±vR = BbfvU© wPwb 370C [Møy‡KvR + d«z‡±vR = BbfvU©wPwb] [nvRvix m ̈vi] 46. digvwj‡b Kx cwigvY wg_vb ̈vj _v‡K? A) 52% B) 40% C) 20% D) 8% DËi : B) e ̈vL ̈v wg_vb ̈vj Gi 40% Rjxq `aeY: digvwjb| [nvRvix m ̈vi]